Restorations and Periodontal Health

Question 1

Define Biological Width

Answer 1

The combined width of the connective tissue and junctional epithelial attachment formed adjacent to the tooth and superior to the crestal bone

Question 2

What are the 2 Main Causes of Periodontal Problems from Restoration?

Answer 2

Plaque Retentive Features
- overhangs, ledges
- voids at the margin
- roughness of the surface

Food Impaction
- poor or no contact points
- incorrect contour of supra gingival bulge
- overbuild or underbuilt embrasures = spillways
- plunger cusps - abnormal cusp contact between marginal ridges

Question 3

If Gingivitis is Present, What should be Assessed before a Restoration is Placed?

Answer 3

• can there be spontaneous haemorrhage?
• if bleeding will affect moisture control

Question 4

If Periodontitis is Present, What should be Assessed before a Restoration is Placed?

Answer 4

• if pocketing and bone loss means poor contours and aesthetics
• if there will be issues with subgingival floor from root caries
• how deep is it before there is sound tissue or pulp exposure