[Finite elemental analysis of the influence of mandibular plane angle on the stress distribution of implant tooth].
OBJECTIVE
Finite elemental analysis of the mechanical characteristics of a first mandibular implant molar under different mandibular plane angles determines the load conditions on the implant, thereby providing guidance for clinical application.


METHODS
CT data of three mandibular plane angles (low, average, high) were collected. A finite elemental combination model of a dental implant was constructed. The orthogonal experimental research was designed. Results followed data collection and analysis.


RESULTS
The optimal combination was a low angle, 4.8 mm, and type Ⅱ bone. The relations among diameter of the implant, angle of mandibular bone, and bone density were determined.


CONCLUSIONS
Mandibular plane angle influences the stability of a dental implant. Under constant biting force, dental implants bear the stress proportional to the angle, high angles cause high stress, average angles cause average stress, and low angles cause the least stress.
Dept. of Stomatology, Tianjin Public Security Hospital, Tianjin 300042, China.
Xing
X
Weibin
School of Mechanical Engineering, Tianjin University, Tianjin 300042, China.
Zheng
Z
Shuxian
Dept. of Stomatology, Tianjin Public Security Hospital, Tianjin 300042, China.
Yang
Y
Shiyi
D001732:Bite Force; D015921:Dental Implants; D017267:Dental Prosthesis Design; D003799:Dental Stress Analysis; D020342:Finite Element Analysis; D006801:Humans; D008334:Mandible; D008963:Molar
D015921:Dental Implants
dental implant; finite elemental analysis; mandibular plane angle; stress distribution