J 2024

Biomechanical performance of dental implants inserted in different mandible locations and at different angles: A finite element study

THOMKOVA, Barbora, Petr MARCIAN, Libor BORAK, Marek JOUKAL, Jan WOLFF et. al.

Základní údaje

Originální název

Biomechanical performance of dental implants inserted in different mandible locations and at different angles: A finite element study

Autoři

THOMKOVA, Barbora (203 Česká republika), Petr MARCIAN (203 Česká republika), Libor BORAK (203 Česká republika), Marek JOUKAL (203 Česká republika, domácí) a Jan WOLFF (203 Česká republika)

Vydání

JOURNAL OF PROSTHETIC DENTISTRY, NEW YORK, MOSBY-ELSEVIER, 2024, 0022-3913

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30208 Dentistry, oral surgery and medicine

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 4.600 v roce 2022

Organizační jednotka

Lékařská fakulta

UT WoS

001152274200001

Klíčová slova anglicky

dental implants

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 29. 4. 2024 13:21, Mgr. Tereza Miškechová

Anotace

V originále

Statement of problem. Accurate implant placement is essential for the success of dental implants. This placement influences osseointegration and occlusal forces. The freehand technique, despite its cost-effectiveness and time efficiency, may result in significant angular deviations compared with guided implantation, but the effect of angular deviations on the stress-strain state of peri-implant bone is unclear. Purpose. The purpose of this finite element analysis (FEA) study was to examine the effects of angular deviations on stress-strain states in peri-implant bone. Material and methods. Computational modeling was used to investigate 4 different configurations of dental implant positions, each with 3 angles of insertion. The model was developed using computed tomography images, and typical mastication forces were considered. Strains were analyzed using the mechanostat hypothesis. Results. The location of the implant had a significant impact on bone strain intensity. An angular deviation of +/- 5 degrees from the planned inclination did not significantly affect cancellous bone strains, which primarily support the implant. However, it had a substantial effect on strains in the cortical bone near the implant. Such deviations also significantly influenced implant stresses, especially when the support from the cortical bone was uneven or poorly localized. Conclusions. In extreme situations, angular deviations can lead to overstraining the cortical bone, risking implant failure from unfavorable interaction with the implant. Accurate implant placement is essential to mitigate these risks. (J Prosthet Dent 2024;131:128.e1-e10)