S3 Guidlines Flashcards
(52 cards)
What is the aim of step 3 guidance in peridontal treamtent
To treat those areas of the dentition thayt are not responding adequately to step 2 with the purpose of gaining further access to subgingival instrument ion or aiming at resecting those lesions that add complexity in the managment ( bone defects)
What is periochip
This is a treatment adjunct for periodontal disease it is a chlorhexidine infused gelatin matrix and it is inserted into the pocket following PMPR
When would you use periochip
Following PMPR in localised sites that haven’t responded e.g. angular defects or furcation
What is dentomycin
This is a local antimicrobial used as an adjunct in periodontal therapy - 2% minocycline gel
Inserted into pocket following subignvial PMPR
What is the function of dentomycin
Reduces bacterial load of periodontal pathogens in that pocket to try and allow the healing process to occur
When might periodontal surgery be indicated ?!
In sites where good quality non surgical periodontal treatment has not resolved periodontal pocketing and there is ongoing inflammation or infection .
Periodontal pocketing >6mm
What 4 factors should be considered before going ahead with periodontal surgery
Patient - oral hygiene, the quality of maintenance available
Tooth - access to non reposnding sites, tooth position and anatomy
Medical considerations
Operator skill level
What are the aims of access surgery in Periodontology
Access to area of continued inflammation or infection
Usually for areas with pockets >6mm
To allow for surgical debridement
Why must be wary of angular bone defects
They are high chance of Relaspe if appropriate support measures not put in place
What are indications for regenerative periodontal surgery
Intrabony defects 3mm or deeper
Class 2 or 3 furcation defect
When considering the tooth for periodontal surgery what things do we want to look for
Tilting
Overeruption
Proximity to adjacent roots
Enamel pearls
Ridges or grooves
What is the difference between conservative and resective approaches in periodontal surgery
Conservative is preserving tissue and resective is removing tissue
What are 4 indications for mucogingival surgery
- Periodontitis lesions requiring reconstructive or regenerative surgery
- Mucogingival deformities that require periodontal plastic surgery procedures ( recession)
- Short clincal crowns where an increase in clincal crown height is required before restorations constructed
- Remove of a frena
- Creation of a more favourable soft tissue bed pre-implant surgery
What are the three most common mucogingval surgeries
Free gingival graft
Pedicle graft
Connective tissue graft
What is the difference between a full thickness and a split thickness flap
Full thickness flap - entire soft tissue including the periosteum exposing the bone
Split - leaving the periosteum behind covering the bone
Why do we use a split thickness flap in free gingival graft
To allow for a better blood supply
What is the difference between a free graft and a pedicle sliding graft§
In a pedicle sliding graft - the tissue is still attached at the base so there is a good blood supply
The flap is rotated laterally to cover the defect
What is the best situation for a connective tissue graft
Single recession defects
What are the 3 types of intra- Bony defects
1 wall - through and through
2 wall
3 wall
Why does a 3 wall bony defect have the best healing
Because there are osteoblasts coming from all sides
In access and resective surgey how do we heal
Heal through formation of long junctional epithelium
Define gingival recession
Describes the apical migration of the gingival margin from the cemento-enamel junction
When a patient has gingival recession - what are indications for treatment
Poor aesthetics
Difficult plaque control and sensitivity
Name 4 causes of localised recession
Excessive tooth brushing - incorrect technique
Traumatic incisor relationship
Habits - tongue stud - end of a pencil chewing
Anatomical - frenulum pull