periodontology Flashcards
(23 cards)
in absence of disease how does the width of attached gingivae change with age
increases
staining used to differentiate keratinised gingivae
schillers iodone solution
keratinised = orange, other = purple/blue
symptoms and signs of primary herpetic gingivostomatits
fever, pyrexia, headaches, malaise, dysphagia, regional lymphadenopathy
aggressive marginal gingivitis, fluid filled vesicles with grey membranous covering - burst to form yellow/grey ulcer
heal without scarring 14 days
on gingiva, tongue, hard palate, buccal mucosa
what is plasma cell gingivitis
contact hypersensitivity reaction
clinical features of plasma cell gingivitis
fiery-red gingiva, extreme pain
3 disorders causing desquamative gingivitis
MMP
lichen play
pemphigus vulgaris
clinical features of desquamative gingivitis
fiery-red
keratinised gingiva
causes of necrotising gingivitis
depressed immune system - AIDS, malnutrition
smoking
stress
poor OH/preexisiting PD
fusiform-spirochaetal bacteria
clinical features of ANUG
punched out ulcers, yellow/grey pseudomembranous slough
interdental papillae effected first
painful
halitosis
what is calculus
plaque which has become mineralised by calcium + phosphate ions in saliva
5 plaque-retentive factors
overhanging restoration defective crown margin bridge pontics partial denture orthodontic appliances
potential spread of perio/endo lesions to make a periodical-endo lesion
apical foramina lateral/furcation accessory canals exposed dentinal tubules root defects by caries fractures perforations during operative procedures
prevalence of gingival hyperplasia with different drugs
phenytoin 50%
ciclosporin 30%
calcium channel blockers 20%
condition causing ‘strawberry’ appearance of gingiva + hyperplastic gingivitis with petechiae
wegeners granulomatosis
what is an epulide
localised hyperplastic lesions on gingiva
trauma or chronic irritation - granulation tissue
how does occlusal interference affect the periodontium
may increase tooth mobility due to compensating widening of PMS
does not cause PD but may make it worse
effects of traumatic occlusal forces
pain fracture faceting attrition bruxism TMD tooth mobility
syndromes and medical conditions causing PD
downs syndrome
papillon-lefevre
Ehlers-danlos
hypophosphatasia
3 factors contributing to reduced probing depths after RSD
shrinkage of soft tissue as inflammation resolves
increased resistance to probe penetration as inflammation resolves
formation of LJE at base
indications for crown lengthening
increase ferrule
access for subginigval crown finish lines/impressions
sub gingival caries
root fractures/resorption in cervical third of tooth root
aesthetic improvement of anterior teeth
3 surgerys used to improve recession
free gingival graft
pedicle sliding graft
sub epithelial connective tissue graft
microorganism most strongly associated with molar incorrectly pattern periodontitis
actinomycetemcomitans
often heridary + its show neutrophil deficiencies
how does GTR work
membrane placed, blood clot forms below and acts as scaffold for migrating cells that produce new periodontal ligament, cementum + bone
gingival epithelium excluded
