🌟 PERIO-RESTORATIVE RELATIONSHIP
📌 POINTS TO PONDER
🔹Overcontoured crowns and restorations accumulate plaque and prevent self cleansing mechanism of adjacent cheek, lips and tongue.
🔹Overhanging can be removed with the help of files,enamel shavers or EVA prophylaxis system.
📣 Periodontal Considerations In Restorative Dentistry
🔸Margins of restorations
🔸Gingival management for making impressions
🔸Contour of restoration
🔸Occlusal surface
🔸Surface finish of restorative materials
🔸Restoration of hemisected and resected tooth
🔸Restorative procedures
🔸Materials
🔸Restorative design features for periodontally treated teeth
📣 Inter-relationship
👉 The application of periodontics in restorative dentistry includes:
🔸Pre Restorative periodontal care
🔸Periodontal surgery for the placement of restoration
📣Application of restorative dentistry in periodontics includes:
🔸Excavation of dental caries and restoration.
🔸Restorative correction of open gingival embrasures.
🔸Management of gingival embrasure form with periodontal recession.
🔸Restoration of root-resected teeth.
🔸Splinting.
📌 VIVA VOCE
Q1. Why active periodontal disease are treated and controlled prior to any restorative procedure?
Ans. Because margins of restorations covered by inflamed gingiva shrinks after periodontal treatment. Thus, to locate and determine the gingival margins of restorations properly, the position of the healthy and stable gingival margin must be established prior to tooth preparation.
Q2. How overhanging margins contribute to periodontal disease?
Ans. Overhanging margins provide ideal niche for plaque accumulation and also change the ecological balance of the gingival sulcus area to one that favors the growth of disease associated organisms.
Q3. Why dental caries removal and restoration is done in phase I only?
Ans. Carious lesion acts as plaque retentive area.
Q4. Why periodontal plastic surgery (free gingival graft) should be carried out atleast 2 months before placement of restorations?
Ans. Two months time allows mature tissue to form in the gingival margin so that restorative procedures do not cause the return of clinical inflammation.
Q5. Which dentifrices are contraindicated for porcelain and composite restorations?
Ans. Acidulated fluoride preparations.
Q6. How the surface of restoration have effect on plaque accumulation?
Ans. Rough restorative surface in subgingival region results in plaque accumulation and thus, results in gingival inflammation.
Q7. How overhanging margins are avoided in restoring a tooth with any plastic filling material?
Ans. By placing accurately contoured matrix bands stabilized by triangular wood or plastic wedge.
Q8. Name various restorative materials used for intra and extracoronal splinting.
Ans. Amalgam, acrylic or composite.
Q9. What are the application of periodontics in restorative dentistry?
Ans. Prerestorative periodontal care; periodontal surgery for the placement of restoration.
Q10. What are the causes of open gingival embrasures?
Ans. Inadequate papilla height due to bone loss; coronally placed interproximal contact.