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Histomorphometric evaluation of ridge preservation after molar tooth extraction / 北京大学学报(医学版)
Journal of Peking University(Health Sciences) ; (6): 169-175, 2017.
Article in Chinese | WPRIM | ID: wpr-509414
ABSTRACT

Objective:

To evaluate bone formation in human extraction sockets with absorbed surrounding walls augmented with Bio-Oss(R) and Bio-Gide(R) after a 6-month healing period by histologic and histomorphometric analyses.

Methods:

Six fresh molar tooth extraction sockets in 6 patients who required periodontally compromised moral tooth extraction were included in this study.The six fresh extraction sockets were grafted with Bio-Oss(R) particle covered with Bio-Gide(R).The 2.8 mm × 6.0 mm cylindric bone specimens were taken from the graft sites with aid of stent 6 months after the surgery.Histologic and histomorphometric analyses were performed.

Results:

The histological results showed Bio-0ss(R) particles were easily distinguished from the newly formed bone,small amounts of new bone were formed among the Bio-Oss(R) particles,large amounts of connective tissue were found.Intimate contact between the newly formed bone and the small part of Bio-Oss(R) particles was present.All the biopsy cylinders measurement demonstrated a high inter-individual variability in the percentage of the bone,connective tissues and BioOss(R) particles.The new bone occupied 11.54% (0-28.40%) of the total area;the connective tissues were 53.42% (34.08%-74.59%) and the Bio-Oss(R) particles were 35.04% (13.92%-50.87%).The percentage of the particles,which were in contact with bone tissues,amounted to 20.13% (0-48.50%).

Conclusion:

Sites grafted with Bio-Oss(R) particles covered with Bio-Gide(R) were comprised of connective tissues and small amounts of newly formed bone surrounding the graft particles.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Journal of Peking University(Health Sciences) Year: 2017 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Journal of Peking University(Health Sciences) Year: 2017 Type: Article