Perio Health

Question 1

FEATURES of HEALTHY PERIODONTIUM

Answer 1

• Biological width = connective tissue attachment + junctional epithelium
  2.15 - 2.3 mm 0.7 - 1.8 0.6 - 1.1
• Supragingival bulge deflects food from gum –> 2 clean stagnation areas
• Contact points + embrasures = small SA incisor-canine, broad canine-molars, protect gingival papillae + spillway food

Question 2

BEFORE REST = prevention

Answer 2

• Diet, smoking, OHI (BOP, PFS, TBI), Fl
• Correct faulty rest + dis  repair, modify, replace, refer, extract

Question 3

Interproximal food packing, examine occlusion:

Answer 3

• Plunger cusps = abnormal contact between marginal ridges
• Open/poor contacts tooth+rest
• Underbuilt rest + over erupted opp teeth

Question 4

Gingivitis+Periodontitis Status

Answer 4

• Spontaneous haemorrhage on prep or band placement
• Bleeding  moisture control
• Pocket+bone loss = poor soft tissue contour + aesthetic
• Deep subgingival floor –> root caries –> pulp exposure

Question 5

Long-term Inflammation Consequences

Answer 5

• Localised alveolar bone + tooth loss
• Gingival recession
• Root + 2° caries

Question 6

MAINTAIN HEALTH = matrix band + wedge

Answer 6

• Tight contact points = ↓plaque+food trap
• Minimise voids = ↓
• No overhang/ledges

Question 7

RESTORATION ISSUES

Answer 7

1. Plaque Retentive Factors
   o Overhangs or ledges
   o Deficiencies or voids
   o Rough surface
2. Food Impaction
   o Poor/no contact point
   o Incorrect 3D contour of supragingival bulge
   o Over/underbuilt embrasures