Lateral static overload on immediately restored implants decreases the osteocyte index in peri-implant bone: a secondary analysis of a pre-clinical study in dogs.
Bone matrix
Bone remodeling
Dental implants
Osteocytes
Journal
Clinical oral investigations
ISSN: 1436-3771
Titre abrégé: Clin Oral Investig
Pays: Germany
ID NLM: 9707115
Informations de publication
Date de publication:
May 2021
May 2021
Historique:
received:
01
07
2020
accepted:
27
10
2020
pubmed:
6
11
2020
medline:
24
4
2021
entrez:
5
11
2020
Statut:
ppublish
Résumé
This animal study was conducted to evaluate the osteocyte index in the peri-implant bone around immediately restored implants under static lateral overload. Seven mongrel dogs received three implants on each side of the mandible. Forty-two implants were distributed into three groups (14 implants per group); each animal received two implants connected to a 4.5-mm opened expansion device (experimental group); in the other mandible side, two implants were connected into an expansion device without activation (control group); one implant each side of the mandible was left submerged (unload group). After 4 months under daily mechanical and chemical plaque control, the animals were euthanized; dental implants and surrounding bone were removed and processed to obtain thin ground sections. Histomorphometry was used to evaluate the osteocyte index in the peri-implant bone contact to implant. A higher, statistically significant mean number of osteocytes × 10 The lower number of osteocytes in the peri-implant bone around overloaded implants could be related to the need for functional adaptation of the bone tissue to overloading and to the hypothesized involvement of the osteocytes in the maintenance of the bone matrix in the control group. Osteocytes play a pivotal role in bone adaptation to mechanical loading, and the osteocyte network has been regarded as being the main mechanosensory mechanism.
Identifiants
pubmed: 33150510
doi: 10.1007/s00784-020-03662-1
pii: 10.1007/s00784-020-03662-1
doi:
Substances chimiques
Dental Implants
0
Types de publication
Journal Article
Langues
eng
Pagination
3297-3303Références
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