Cohen, Omer; Bosshardt, Dieter D.; Weinberg, Evegeny; Slutzkey, Gil; Moses, Ofer (2021). The Effect of Coronal Implant Design and Drilling Protocol on Bone-to-Implant Contact: A 3-Month Study in the Minipig Calvarium. Materials, 14(10) MDPI 10.3390/ma14102645
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Background: Stress concentrated at an implant's neck may affect bone-to-implant contact (BIC). The objective of this study was to evaluate four different implant neck designs using two different drilling protocols on the BIC. Methods: Ninety-six implants were inserted in 12 minipigs calvarium. Implants neck designs evaluated were: type 1-6 coronal flutes (CFs), 8 shallow microthreads (SMs); type 2-6 CFs,4 deep microthreads (DMs); type 3-4 DMs; type 4-2 CFs, 8 SMs. Two groups of forty-eight implants were inserted with a final drill diameter of 2.8 mm (DP1) or 3.2 mm (DP2). Animals were sacrificed after 1 and 3 months, total-BIC (t-BIC) and coronal-BIC (c-BIC) were evaluated by nondecalcified histomorphometry analysis. Results: At 1 month, t-BIC ranged from 85-91% without significant differences between implant types or drilling protocol. Flutes on the coronal aspect impaired the BIC at 3 m. c-BIC of implant types with 6 CFs was similar and significantly lower than that of implant types 3 and 4. c-BIC of implant type 4 with SMs was highest of all implant types after both healing periods. Conclusions: BIC was not affected by the drilling protocol. CFs significantly impaired the -BIC. Multiple SMs were associated with greater c-BIC.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
04 Faculty of Medicine > School of Dental Medicine > Department of Periodontology 04 Faculty of Medicine > School of Dental Medicine > Periodontics Research |
UniBE Contributor: |
Bosshardt, Dieter |
Subjects: |
600 Technology > 610 Medicine & health |
ISSN: |
1996-1944 |
Publisher: |
MDPI |
Language: |
English |
Submitter: |
Doris Burri |
Date Deposited: |
26 Jan 2022 16:08 |
Last Modified: |
07 Aug 2024 15:45 |
Publisher DOI: |
10.3390/ma14102645 |
PubMed ID: |
34070127 |
Uncontrolled Keywords: |
bone-to-implant contact drilling flutes microthreads |
BORIS DOI: |
10.48350/163931 |
URI: |
https://boris.unibe.ch/id/eprint/163931 |
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