Perio Flashcards

(119 cards)

1
Q

function of the periodontium

A
  • to attach the teeth to the jaws
  • dissipate occlusal forces
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2
Q

types of horizontal forces

A
  • constant - orthodontic
  • intermittent - occlusal (jiggling)
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3
Q

excessive occlusal force definition

A
  • occlusal force that exceeds the reparative capacity of periodontal attachment aparatus
  • results in occlusal trauma and/or excessive tooth wear
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4
Q

occlusal trauma definition

A
  • injury which results in changes within periodontal attachment aparatus
  • as a result of occlusal force(s)
  • may occur in a intact periodontium or in a reduced periodontium caused by periodontal disease
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5
Q

what is periodontal attachment aparatus

A
  • periodontal ligament
  • supporting alveolar bone
  • cementum
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6
Q

factors influencing tooth mobility

A
  • width of PDL
  • height of PDL
  • inflammation
  • number, shape and length of roots
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7
Q

tooth mobility indicates

A
  • successful adaptation of periodontium to functional demands
  • reflects the nature of the remaining attachment
  • does not necessarily represent a pathological state of affairs
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8
Q

tooth mobility can be accepted unless

A
  • it is progressively increasing
  • it gives rise to symptoms
  • it creates difficulty with restorative tx
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9
Q

therapy to reduce tooth mobility (tx options)

A
  • control of plaque-induced inflammation
  • correction of occlusal relations
  • splinting
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10
Q

response of the healthy periodontium to primary occlusal trauma

A
  • PDL width increases until forces dissapated
  • tooth mobility increased
  • this is successful adaptation to increased demand
  • if demand is subsequently reduced the PDL width should return to normal
  • if demand too great or PDL adaptibility reduces PDL width may continue to increase
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11
Q

histological changes occuring during occlusal trauma to healthy periodontium

A
  • on pressure side: increased vascularisation and permeability, necrosis of PDL, thrombosis, hameorrhage, bone resorption
  • on tension side: elongation of PDL, apposition of alveolar bone and cementum
  • density of alveolar bone decreases while width of PDL space increases
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12
Q

secondary occlusal trauma

A
  • injury which results in tissue changes
  • from normal or excessive occlusal forces applied to tooth/teeth with reduced periodontal support
  • occurs in presence of attachment loss, bone loss, and normal/excessive occlusal forces
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13
Q

evidence of occlusal trauma

A
  • tooth mobility which is progessively increasing
  • tooth moblility associated with symptoms
  • radiographic evidence of increased PDL width
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14
Q

define fremitus

A

palpable or visible movement of a tooth when subjected to occlusal forces

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15
Q

occlusal trauma
diagnosis made from

A
  • progressive tooth mobility
  • fremitus
  • occlusal discrepancies
  • wear facets
  • tooth migration
  • also…
  • tooth fracture
  • thermal sensitivity
  • root resorption
  • cemental tear
  • widening of PDL space on radiograph
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16
Q

tooth migration causes/results in

A
  • loss of periodontal attachment
  • unfavourable occlusal forces
  • unfavourable soft tissue profile
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17
Q

management of tooth migration

A
  • treat the periodontitis
  • correct oclusal relations
  • either accept the position of the teeth and stabilise or move the teeth orthodontically and stabilise
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18
Q

splinting for perio may be appropriate when

A
  • mobility is due to advanced loss of attachment
  • mobility is causing discomfort or difficulty in chewing
  • teeth need to be stabilised for debridement
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19
Q

negatives of splinting for perio

A
  • does not influence the rate of periodontal destruction
  • may create hygiene difficulties
  • is a treatment of last resort
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20
Q

effect of excessive occlusal forces on gingival recession

A

no correlation identified

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21
Q

2017 perio disease classification
10 listed classifications

A
  1. health
  2. plaque induced gingivitis
  3. non plaque induced gingival disease and conditions
  4. periodontitis
  5. necrotising periodontal disease
  6. periodontitis as a manifestation of systemic disease
  7. systemic diseases or conditions affecting the periodontal tissues
  8. periodontal abscess
  9. periodontal-endodontic lesions
  10. mucogingival deformities and conditions
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22
Q

2017 perio disease classification
gingival health

A
  • intact periodontium - absence of bleeding on probing, erythema and edema, pt symptoms and attachment and bone loss
  • reduced periodontium due to causes other than periodontitis
  • <10% bleeding sites and probing depths <= 3mm
  • physiological bone levels range from 1-3mm apical to CEJ
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23
Q

2017 perio disease classification
plaque induced gingivitis

A
  • BPE score 1 or 2
  • associated with biofilm alone
  • mediated by systemic or local risk factors - drug influenced gingival enlargement etc
  • no radiological bone loss
  • no interdental recession
  • bleeding on probing <30% localised and >30% generalised
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24
Q

plaque induced gingivitis modifying factors

A
  • can exacerbate but not cause gingivitis
  • drug induced gingival enlargement - amlodipine (ca channel blocker), anticonvulsants, immunosuppresants
  • sex steroid hormones - puberty, pregnancy, oral contraception
  • hyperglycemia
  • smoking
  • malnutrition
  • prominent subgingival restoration margins
  • hyposalivation
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25
2017 perio disease classification non-plaque induced gingival diseases
* genetic/developmental disorders - eg hereditary gingival fibromatosis * specific infections - herpetic gingival stomatitis * endocrine, nutritional and metabolic diseases - vitamin c deficiency * inflammatory and immune conditions - lichen planus * traumatic lesions * gingival pigmentation
26
2017 perio disease classification necrotising periodontal diseases
* necrotising gingivitis - necrosis and ulcer in interdental papilla * necrotising periodontitis - signs and symptoms of NG plus periodontal attachment and bone destruction * necrotising stomatitis - larger areas of osteitis and bone sequestrum
27
predisoposing conditions for necrotising periodontal disease in chronically, severely compromised adults
* HIV +/ AIDS with CD4 counts < 200 and detectable viral load * other severe systemic conditions eg immunosuppression
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predisoposing conditions for necrotising periodontal disease in chronically, severely compromised children
* severe malnourishments * extreme living conditions * severe (viral) infections
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predisoposing conditions for necrotising periodontal disease in temporarily/moderately compromised pt
* uncontrolled factors - stress, nutrition, smoking, habits * previous NPD - residual craterss * local factors - root proximity, tooth malposition * common predisposing factors
30
2017 perio disease classification periodontitis as a manifestation of systemic disease
* mainly rare diseases that affect the course of periodontitis * resulting in early presentation of severe periodontitis * papillon lefevre syndrome * leucocyte adhesion deficiency * downs syndrome
31
2017 perio disease classification systemic diseases or conditions affecting the periodontal tissues
* mainly rare conditions affecting perio tissues independantly of dental plaque biofilm induced inflamation * may mimic clinical presentation of periodontitis * squamous cell carcinoma * langerhans cell histocytosis * does not include common systemic diseases that modify course of perio such as uncontrolled diabetes - instead included as descriptor in staging and grading process
32
2017 perio disease classification periodontal abscess
* in periodontitis patients - acute exacerbation or after treatment * in non periodontitis patients
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causes of periodontal abscess in periodontitis patients
* acute exacerbation - untreated periodontitis, non-responsive to perio therapy * after treatment - post-scaling, post-surgery, post-medication
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causes of periodontal abscess in non perio patients
* impaction - dental floss, rubber dam, popcorn hulls etc * harmful habits - nail biting, clenching * orthodontic factors - ortho forces, cross-bite * gingival overgrowth * alteration of root surface - perforations, cracked tooth syndrome, odontodysplasia
35
2017 perio disease classification periodontal endodontic lesions
* endo periodontal lesions with root damage - root #, root canal or pulp perforation, external root resoprtion * endo-perio lesions without root damage - can either be in perio patients or not in perio patients
36
2017 perio disease classification mucogingival deformities and conditions
* gingival recession * recession type 1 (RT1) * recession type 2 (RT2) * recession type 3 (RT3)
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mucogingival deformaties and conditions recession type 1
* gingival recession with no loss of interproximal attachment * interproximal CEJ is clinically not detectable at both mesial and distal aspects of the tooth
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mucogingival deformaties and conditions recession type 2
* gingival recession associated with loss of interproximal attachment * amount of attachment loss measured from interproximal CEJ to depth of sulcus/pocket * is LESS THAN OR EQUAL TO buccal attachment loss which is measured from buccal CEJ to end of buccal sulcus/pocket
39
mucogingival deformaties and conditions recession type 3
* gingival recession associated with loss of interproximal attachment * amount of attachment loss measured from interproximal CEJ to end of sulcus/pocket * is GREATER than the buccal attachment loss
40
necrotising periodontal disease characteristics
* rapidly destructive and debilitating * most severe inflammatory periodontal disease caused by plaque * painful, bleeding gums and ulceration * necrosis of interdental papilla - punched-out appearance * seen more in developing countries * due to predisposing factors
41
classification of necrotising periodontal disease
* necrotising gingivitis - when only the gingival tissues affected * necrotising periodontitis - when necrosis progresses into PDL and alveolar bone leading to attachment loss * necrotising stomatitis - when necrosis progresses to deeper tissues beyond mucogingival line - including lip or cheek mucosa, tongue etc
42
diagnoses of necrotising periodontal disease general overview
* based on symptoms not any test * histopathology and microbiology not characteristic for NPD * constant flora - prevotella intermedia, fusobacterium sp. * bacteria isolated from large number of necrotic lesions but not always found in primary lesion so no evidence of primary etiologic importance
43
diagnoses of necrotising periodontal disease necrotising gingivitis
* ulcerated and necrotis papillae and gingival margin - punched-out appearance * ulcers covered by a yellowish, white or greyish slaim (NOT psuedomembrane) * when slaim removed the underlying CT becomes exposed and bleeds * lesions develop quickly and are very painful
44
diagnoses of necrotising periodontal disease what is slaim
* yallowish, white or greyish slouthing covering ulcers * made of fibrin, necrotic tissue, leucocytes, erythrocytes and mass of bacteria
45
where are first lesions of necrotising gingivitis commonly seen
interproximally in mandibular anterior region
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diagnoses of necrotising periodontal disease necrotising periodontitis
* ulcerations often associated with deep pockets formation * gingival necrosis coincides with loss of alveolar crest bone * ulcers with central necrosis develop into craters * adenopathies (enlarged lymph nodes) found in most severe cases - affects submandibular LN more than cervical * very rarely fever
47
diagnoses of necrotising periodontal disease necrotising stomatitis
* affected bone extends through alveolar mucosa * larger bone sequestra (bone that has been separated from the surrounding bone during the process of necrosis) may occur * large areas of osteitisand oral-antral fistulae * greater severity in pt with severe systemic compromise - AIDS and pt with severe malnutrition
48
necrotising periodontal diseases should be differentiated from the following
* oral mucositis * HIV-associated periodontitis * herpes simplex virus * scurvy * gingivostomatitis * leukemia * desquamative gingivitis
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risk factors for necrotising periodontal disease
* in developed countries - stress, sleep deprivation, poor oral hygiene, smoking, immunosuppression (HIV, leukemia) and/or malnutrition * in developing countries - mostly in malnourished children
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how herpetic gingivostomatitis differs from necrotising periodontal disease
* caused by herpes simplex virus not bacteria * affects gingiva and entire oral mucosa whereas NPD affects interdental papillae and rarely outside mouth * lasts 1-2 weeks whereas NPD lasts 1-2 days if treated * can get partial immunity * is contageous * no permanent destruction vs NPD destruction of periodontal tissue remains
51
necrotising periodontal disease treatment of the acute phase
* two main objectives: 1. arrest disease process/tissue destruction 2. control pt discomfort and pain * careful superficial debridement to remove soft and mineralised deposits - ultrasonics recommended * performed daily deeper and deeper for as long as acute phase lasts * limit mechanical oral hygiene - brushing into wound may impair healing and cause pain * pt use chlorhexidine based mouthrinses twice daily
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necrotising periodontal disease further treatment if debridement unsatisfactory
* use of systemic antimicrobials may be considered if unsatisfactory response to debridement or show systemic effects (fever and/or malaise) * metronidazole 400mg TID 3 days * locally delivered antimicrobials not recommended as drug will not be able to achieve adequate conc - because of large number of bacteria in tissues
53
necrotising periodontal disease treatment follow up
* have to be followed up very closely - daily if possible * as symptoms and signs improved strict mechanical hygiene measures should be enforced * complete debridement of the lesions
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necrotising periodontal disease treatement of pre-existing condition
* pt with NPD usually have pre-existing gingivitis or periodontitis * once acute phase controlled treat pre-existing condition * professional prophylaxis and/or scaling and root planning * OHI enforced * evaluate local factors such as overhanging res, tooth malposition etc and treat * control of systemic predisposing factors - smoking, stress reduction etc or tx of systemic conditions
55
necrotising periodontal disease corrective tx of disease
* correct altered gingival form/features * gingival craters may favour plaque acculumation and disease recurrence * gingivectomy or gingivoplasty procedures for superficial craters * periodontal flap surgery, regenerative surgery for deep craters
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what to screen for if healthy individual without any predisposing factors has NPD
* HIV * necrotising periodontal disease in healthy individuals suggestive of HIV infection
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acute perio conditions 2018 classification types of abscesses
* periodontal abscess * gingival abscess * endo-perio abscess * dentoalveolar abscess * pericoronitis * other - trauma, surgery
58
abscesses of the periodontium gingival abscess
* localised to the gingival margin * can be caused by localised trauma, food packing etc
59
abscesses of the periodontium periodontal abscess
* usually related to preexisting deep pocket * also associated with food packing and tightening of gingival marging post PMPR * if bacterial plaque removal insufficient --> pocket constrained and virulent bacteria could cause localised abscess * infection in a periodontal pocket which can be acute or chronic and asymptomatic if freely draining (SDCEP) * rapid destruction of periodontal tissues - negative effect on prognosis of tooth
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abscesses of the periodontium pericoronal abscess
* associated with partially erupted tooth * most commonly 8s * pericoronitis
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endodontic-periodontal lesion
* tooth is suffering from varying degrees of endodontic and periodontal disease * endo-perio abscess * pathological communication between the endodontic and periodontal tissues of a tooth * can be acute or chronic * swelling around apex
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periodontal abscess signs and symptoms
* swelling * pain - not usually agonising * tooth may be TTP laterally * deep periodontal pocket * bleeding * suppuration - pus formation * enlarged regional lymph nodes - submandibular, submental, cervical * fever * tooth usually vital * tend to be more low-grade compared to dental abscesses
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periodontal abscess SDCEP guidance
* careful sub-gingival instrumentation - short of the base of the pocket to avoid iatrogenic damage * LA may be required * if pus present drain by incision or through periodontal pocket - recommend optimal anaesthesia * do not prescribe antibiotic unless signs of spreading infection or systemic involvement * recommend the use of 0.2% chlorhexidine MW until acute symptoms subside * review and carry out definitive perio instrumentation
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periodontal abscess use of systemic antibiotics
* only if signs of spread and systemic effects - increased WCC, pyrexic >37.5 degrees C, increased RR, HR, trismus, difficulty swallowing etc * penicillin V 250mg preferred or amoxicillin 500mg or metronidazole 400mg * 5 day course * must only be used in conjunction with careful RSD in order to reduce bacterial load and disrupt biofilm
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endo-perio lesion acute/chronic
* acute - trauma, perforation during RCT * chronic - pre-existing periodontitis, slow progression without evident symptoms * swelling around apex - pus could drain buccally or up periodontal space
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endo-perio lesion signs and symptoms
* deep periodontal pockets * negative or altered response to pulp vitality tests * bone resorption in apical or furcation region * spontaneous pain * pain on palpation and percussion * pus * tooth mobility * sinus tract
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endo-perio lesion possible routes of communication
* lateral canal * furcal canal * apical foramen
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endo-perio lesion lateral and accessory canals
* 30-40% of all teeth have lateral and accessory canals * most in apical third of root * furcal canal - at the furcation of molars - may be direct pathway of communication between the pulp and periodontium * not all furcal canals extend the full length from the pulp chamber to the floor of the furcation
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endo-perio lesion apical foramen
* main route of communication between the pulp and periodontium * microbial and inflammatory by-products may exit apical foramen - causing periapical pathoses * apex also portal of entry for inflammatory by-products from deep periodontal pockets to affect the pulp
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endo-perio lesion perforation
* results in communication between the root-canal system and peri-radicular tissues, PDL or oral cavity * causes - extensive dental caries, resorption, operator error (RC instrumentation or post preparation)
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endo-perio lesion developmental groove
* invagination/vertical radicular groove * especially on upper incisors * if periodontal attachment breached the groove can become contaminated - infrabony pocket can form along its length * channel provides a place for accumulation of bacteria and route for progression of periodontitis - may also affect the pulp if it extends to the apex * radiographically the area of bone destruction follows the course of the groove
72
endo-perio lesion associated with trauma or iatrogenic factors
* root/pulp chamber perforation * root fracture or cracking - trauma or prep for post * external root resorption - trauma * pulp necrosis because of trauma draining through the periodontium
73
classification of endo-perio lesion
* by pulp infection that secondarily affects the periodontium or periodontal destruction that secondarily affects the root canal * 2 catergories - endo-perio lesion with root damage or endo-perio lesion without root damage * with root damage - fracture or cracking, perforation, external root resorption * without root damage - split further into lesion in perio patients and lesion in non-perio patients
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endo-perio lesion SDCEP tx
* carry out primary endodontic therapy of the affected tooth * recommend optimal analgesia * do not prescribe antibiotics unless signs of spreading infection or systemic involvement * recommend use of 0.2% chlorhexidine MW until the acute symptoms subside * following acute management of lesion - review within 10 DAYS and carry out supra and sub-gingival instrumentation if necessary * arrange an appropriate recall interval
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endo-perio lesion additional tx
* non surgical scaling unlikely to be successful * surgical instrumentation and mechanical removal - open flap debridement etc * guided tissue regeneration - bone regeneration etc
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perio tx step 1
* explain disease, risk facors, risks and benefits of tx * give OHI - interdental cleaning * reduce risk factors - remove overhangs, smoking cessation, diet control * professional mechanical plaque removal (PMPR) supra and sub-ginival of clinical crown * select recall period
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perio tx step 1 recall period
* 6-8 weeks * might not be appropriate for certain parts * can be flexible * some 2 weeks
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perio tx step 1 what to evaluate
* non-engaging pt return to step 1 and repeat * engaging pt move to step 2 or consider referral
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perio tx step 2
* subgingival instrumentation - root surface debridement/PMPR on root * hand or powered (sonic/ultrasonic) either alone or in combination * reinforce OHI, risk factor control, behaviour change * use of adjunctive systemic antimicrobials if appropriate
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perio tx step 2 evaluation
* BDS - re-evaluate after 3 months * unstable - go to step 3 * stable - go to step 4
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when to go to step 3 perio
* pt unstable after step 2 perio * step 2 perio re-evaluated after 3 months and then pt goes to step 3
82
perio tx step 3
* managing non-responding sites * OHI, risk factor control, behaviour change * moderate (4-5mm) residual pockets - re-perform subgingival instrumentation * deep residual pockets (>6mm) consider alternative causes and referral for pocket management or regenerative surgery * if referral not possible reperform subgingival instrumentation
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perio tx step 3 recall
* 3 months * if all sites stable after step 3 proceed to step 4
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perio tx step 4
* maintenance * supportive periodontal care encouraged * reinforce OHI, risk factor control, behaviour change * regular targeted PMPR as required to limit tooth loss * maintenance recall - individually tailored intervals from 3-12 months
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BSP top tips
* pt should be aware that regular self-performed plaque removal offers largest tx benefits * toothbrushing should be supplemented by use of interdental brushes
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BSP defining engaging pt
* >50% improvement in plaque and marginal bleeding scores OR * plaque levels <20% and bleeding levels <30% OR * pt has met targets outlined in their personal self-care plan
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BSP defining non-engaging pt
* insufficient improvement in OH - <50% improvement in plaque and marginal bleeding scores OR * plaque levels >20% and bleeding levels >30% OR * pt states preference to a palliative approach to periodontal care
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define success at perio review
* good oral hygiene * no BOP * no pockets >4mm * no increase in tooth mobility * a functional and comfortable dentition
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perio tx step 3 tx options
PPD 4-5mm repeted subgingival instrumentation PPD >= 6mm consider surgical approach
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factors influencing decision for periodontal surgery
* smoking * compliance * oral hygiene * systemic disease * suitability of site - access, soft and hard tissue factors * prognosis of tooth and importance of tooth * availability of specialist tx * patient preference
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perio tx ideal endpoint
* no pockets >4mm * BOP <10% * functional and comfortable dentition * plaque scores <20% or target for pt
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perio tx step 4 main aims
* maintain periodontal health * detect and retreat recurrence * maintain an accepted level of disease * manage tooth loss
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why perio maintenance (step 4)
* pt not maintained in recall program show obvious signs of recurrent periodontitis * the more often pt present for supportive periodontal therapy, the less likely are to loose teeth * pt who do not return for regular recall 5 X greater risk for tooth loss than compliant pt
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how to do step 4 perio tx
* part 1 examination - history, OH status, pocket depth changes, mobility, update pocket charts and mod bleeding and plaque scores * part 2 PMPR - supra and subgingival based on pocket chart * care must be taken not to instrument normal sites with shallow sulci (1-3mm) with no calculus as studies show can lead to loss of attachment
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causes for periodontal disease recurrence
* inadequate plaque control - pt failure to comply with recommended SPT schedules * failure to remove all potential plaque retentive factors * incomplete calculus removal in areas of difficult access * inadequate restorations placed after perio tx was completed
96
periodontal maintenance 6PPC frequency/location
* for pt with BPE 4 - full mouth periodontal charting annually * for BPE 3 in more than one sextant - full mouth periodontal charting annually * BPE 3 in 1 sextant - full periodontal charting of that sextant annually
97
supportive periodontal therapy debridement
* carry out root surface instrumentation at sites >4mm where sub-gingival deposits present or bleeding on probing * for sites <4mm only carry out sub-gingival instrumentation where deposits are present
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perio guidelines why changes have been made
1. perio quality improvement project 2. new guidelines introduced
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key perio guidelines
* British society of periodontology: - BPE - UK clinical practice guidelines for tx of periodontal disease - 2017 classification of periodontal disease * Scottish Dental Clinical Effectiveness Programme * no difinitive guideline on which charts to use when - at glasgow GDH complete 6PPC used as baseline and review charts for pts at review
100
complete 6PPC advantages and disadvantages
* A - gives a full picture of periodontal attachment loss * D - more time consuming
101
abbreviated/review perio chart advantages and disadvantages
* quicker to complete * can efficiently highlight areas requiring further tx * does not record periodontal attachment loss - progress could be un-recorded
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genetic considerations associated with impairment of immune system
* papillon-lefevre syndrome * LAS syndrome * downs syndrome * chronic granulomatous disease
103
diseases leading to impairment of immunce system
* leukaemia * agranulocytosis * neutropenia * HIV infection
104
categories of periodontal risk factors
* local risk factors - aquired and anatomical * systemic risk factors - non-modifiable and modifiable
105
perio local risk factors acquired
* plaque * calculus * overhanging and poorly contoured restorations * orthodontic appliances * occlusal trauma
106
perio local risk factors anatomical
* malpositioned teeth * root grooves * concavities and furcations * enamel pearls
107
systemic perio risk factors non-modifiable
* ageing * genetic factors * down syndrome * papillon-lefevre syndrome
108
systemic perio risk factors modifiable
* smoking * poorly controlled diabetes * HIV * leukaemia * osteoporosis * stress * medications * poor nutrition * socioeconomic status
109
why is smoking a perio risk factor
* effect on oral microbiota - change to anaerobic bacteria * increase activation of immune systm - due to chemicals * decreased healing capacity - reduced blood flow
110
why sub-optimally controlled diabetes is perio risk factor
* hyperglycaemia may modulate RANKL:OPG ratio - contribute to bone destruction * in hyperglycaemia production of advanced glycation end products (AGE) leads to exacerbation of inflammation
111
drugs which are risk factors for diabetes
* anticonvulsant - phenytoin * immunosuppresants - cyclosporin * calcium channel blockers - nifedipine etc * interaction between drug and host fibroblasts - increased deposition of CT
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relationship between periodontitis and diabetes control
* untreated periodontitis can result in circulating bacteria and antigens - systemic inflammatory state and impaired insulin signalling and reistence - elevated HbA1c levels and exacerbation of diabetes * periodontal tx results in reduced circulating bacteria and antigens and reduction in systemic inflammatory state - improvement in insulin signalling and resistance - reduction in HbA1c and improved diabetes control
113
structure to supportive periodontal care
* part 1 examination - history, plaque chart, pocket depth changes, gingival changes, mobility changes, occlusal changes etc * part II tx - OHI, supra PMPR, RSD, polishing * part III report, cleanup and scheduling - write report in chart, discuss report with pt, schedule rext recall visit/further perio tx
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supportive periodontal therapy examination
* updating medical history * oral mucosa inspected for pathologic conditions * evaluation of restoration, cariesm prosthesis, occlusion, tooth mobility, BOP, periodontal/periimplant probing depths * analysis of current oral hygiene status * primarily look for changes that have occurred since last evaluation
115
supportive periodontal therapy shallow sulci
* care to not instrument normal sites with shallow sulci * 1-3mm deep * that do not have any calculus * studies show repeated subgingival scaling in normal periodontal sites result in significant loss of attachment
116
supportive periodontal therapy challenges
* periodontal pts at risk of disease recurrence for the rest of their lives * pockets in furcation areas may not have been eliminated by inital tx * no test accurately predicts disease activity - clinicians rely on clinical measurements etc
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