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Chapter 26- Principle of Periodontal Surgery: Periodontal Regeneration…
Chapter 26- Principle of Periodontal Surgery: Periodontal Regeneration
Periodontal regeneration-
defined as healing after periodontal surgery that results in the reconstruction of lost tissues; including supporting alveolar bone, cementum, and a functionally oriented periodontal ligament
Periodontal tissue regeneration involves surgery using bone grafts, bone substitute materials, and/or barrier membranes, and modulators of tissue healing are aimed at regenerating the periodontal attachment apparatus lost due to periodontitis
Types of Bone Grafts/Bone Replacement material
Autografts
Bone harvested from one part of the body and grafted to another part of the same patients body
Allografts
Bone material obtained from other individuals of the same species but genetically different
Alloplasts
Made of biocompatible, inorganic, inert materials including synthetic hydroxyapatite, calcium sulfate, bioactive glass, and tricalcium phosphate
Xenografts
type of natural bone substitute derived from a genetically different species
Growth factors are naturally occurring proteins that mediate or regulate cellular events such as cell proliferation
Common Bone Grafts and Bone Substitues
Puros
MinerOss
Bio-Oss
Osteo-graf
SynthoGraft
Perioglas
Capset
DFDBA
Regenafil
OrthoBlast II
Dynablast
Cells Involved in Regeneration
Gingival epithelium
gingival connective tissue
peridontal ligament
supporting alveolar bone
cementum
Types of Barrier membranes- have been used in treatment of Grade II buccal furcation defects in both maxillary and mandibular molars
Nonabsorbable membranes
first to be used and studied clinically. Because the body does not absorb (degrade) a nonabsorbable membrane, it has to be removed
Absorbable membrane
These membranes have various compositions, including collagen