Periodontal bone grafting: synthetic material

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Sections available in full article Introduction, Uses, Technical problems, Alternative techniques, Time required, Decision taking, Requirements, Personnel, Materials required, Preparation, Procedure, Aftercare, Immediate Aftercare, Long term Aftercare, Sequelae, Complications, Prognosis, Reasons for treatment failure, Sources, Publications, Vetstream contributor(s), Organization(s),
Contributors Dr Jan Bellows DVM Dip AVDC
Mr Norman Johnston BVM&S FAVD DipAVDC DipEVDC MRCVS RCVS, American and European Specialist in Veterinary Dentistry

Introduction

  • To promote regeneration of bone loss due to periodontal disease or tooth extraction using synthetic material.
  • Bioactive, particulate, ceramic materials have been shown to be very effective.

Uses

  • To treat vertical infrabony osseous defects caused by periodontal disease  Periodontal disease  .
  • Filling endodontic-periodontic lesions  Periodontal pockets  .
  • Filling traumatic periodontal defects.
  • Filling intraosseous flaws related to pulpal floor or lateral root perforations.
  • Filling tooth extraction site defects to maintain vertical height and width of the alveolar ridge.
  • To produce supporting bone for loose teeth (combined with splint to solid tooth).
  • Repairing fractures of the mandible when bone graft material is needed.

Advantages

  • Rapidly bonds with living tissues (within 3 days)   →   security in defect site.
  • Incorporates into the bone matrix without eliciting a foreign body response.
  • Acts as a scaffold for bone production   →   rapid (from 7 days), extensive osteoproduction.
  • Bending strength and stiffness comparable to normal bone within 3 months.
  • Completely replaced by normal bone/soft tissue within 18 months .
  • Promotes gingival reattachment and limits epithelial downgrowth   →   reduced periodontal pocket depth.
  • Repairs and restores periodontium.
  • Easy to use: easy to mix and manipulate, does not migrate from surgical site, adapts excellently to defect.
  • No special site preparation required - material will bond even when not dry or blood-free.
  • Bacteriostatic - allowing placement in areas of infection with good results.
  • Hemostatic (mechanically).
  • Radio-opaque allowing immediate and long-term observations.

Disadvantages

  • Adequate post-operative home care is essential to the satisfactory outcome of the technique.

Requirements

Materials required

Minimum equipment

  • A sufficient quantity of grafting material for defect to be filled.
  • Small round or pear-shaped bur in handpiece  Dental instruments: burs  .
  • Cross-cut fissure bur in handpiece.
  • No. 2 or 4 Periosteal elevator  Endodontics instrument: periosteal elevator - Molt P9  .
  • Small bone rongeur.
  • Mixing spatula (plastic/metal).
  • Periodontal surgery pack.

Minimum consumables

  • Sterile saline.
  • Syringes for fluid transfer.
  • No. 15c or 11 scalpel blade.
  • 4-0 or 5-0 absorbable suture material.

Preparation

  • Dependent upon site and extent of defect to be filled.

Sequelae

Complications

  • Thermal necrosis from inadequate cooling while using burs.
  • Gingival recession.
  • Flap sloughing.
  • Resorption or ankylosis of treated root.
  • Infection.
  • Pain.
  • Abscess formation.

Prognosis

  • Good - provided cases selected with care and good owner compliance with post-operative home care.

Reasons for treatment failure

  • Inadequate home care   →   poor post-operative oral hygiene   →   advancement of plaque bacteria can   →   'wash out' of the grafting material.
  • Thermal necrosis   →   graft slough.
  • Mobile teeth not stabilized.
  • Endodontic/pulpal disease exists.
  • Concurrent steroid treatment   →   bone destruction.

Sources

Publications

  • DeForge D H (1997) Evaluation of Bioglass*R/PerioGlas *TM (Consil*TM) Synthetic Bone Graft Particulate in the Dog and Cat. J Vet Dent 14(4) 141-145.

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