PMID- 33972141
OWN - NLM
STAT- MEDLINE
DCOM- 20210803
LR  - 20210803
IS  - 1097-6752 (Electronic)
IS  - 0889-5406 (Linking)
VI  - 160
IP  - 2
DP  - 2021 Aug
TI  - Biomechanical analysis for total distalization of the maxillary dentition: A 
      finite element study.
PG  - 259-265
LID - S0889-5406(21)00252-3 [pii]
LID - 10.1016/j.ajodo.2020.04.029 [doi]
AB  - INTRODUCTION: This study aimed to identify the tooth movement patterns relative 
      to various force angulations (FAs) when distalizing the total maxillary 
      dentition. METHODS: Long-term orthodontic movement of the maxillary dentition was 
      simulated by accumulating the initial displacement of teeth produced by elastic 
      deflection of the periodontal ligament using a finite element analysis. 
      Distalization forces of 3 N were applied to the archwire between the maxillary 
      canine and first premolar at 5 different FAs (-30 degrees , -15 degrees , 0 degrees , 15 degrees , and 30 degrees ) to 
      the occlusal plane. RESULTS: Maxillary incisors and molars showed lingual and 
      distal tipping at all FAs, respectively. At a force angulation of 30 degrees , almost 
      bodily distalization of the total maxillary dentition occurred, but incisors 
      showed considerable lingual tipping because of the effect of clearance gap 
      (0.003-in, 0.022 x 0.025-in bracket slot, 0.019 x 0.025-in archwire) and elastic 
      deflection of the archwire. Medial displacement of the maxillary anterior teeth 
      occurred because of lingual tipping during distalization. The occlusal plane 
      rotated clockwise at all FAs because of extrusion of the maxillary incisors and 
      intrusion of the maxillary second molars, and the amounts decreased as FA 
      increased. CONCLUSIONS: Tooth movement patterns during distalization of the total 
      maxillary dentition were recognized. With an understanding of the mechanics, a 
      proper treatment plan can be established.
CI  - Copyright (c) 2021 American Association of Orthodontists. Published by Elsevier 
      Inc. All rights reserved.
FAU - Kawamura, Jun
AU  - Kawamura J
AD  - Private practice, Gifu, Japan.
FAU - Park, Jae Hyun
AU  - Park JH
AD  - Postgraduate Orthodontic Program, Arizona School of Dentistry & Oral Health, A. 
      T. Still University, Mesa, Ariz, Graduate School of Dentistry, Kyung Hee 
      University, Seoul, South Korea.
FAU - Kojima, Yukio
AU  - Kojima Y
AD  - Private practice, Nagoya, Japan.
FAU - Tamaya, Naohiko
AU  - Tamaya N
AD  - Private practice, Fukui, Japan.
FAU - Kook, Yoon-Ah
AU  - Kook YA
AD  - Department of Orthodontics, Seoul St. Mary's Hospital, Catholic University of 
      Korea, Seoul, South Korea.
FAU - Kyung, Hee-Moon
AU  - Kyung HM
AD  - Department of Orthodontics, School of Dentistry, Kyungpook National University, 
      Daegu, South Korea.
FAU - Chae, Jong-Moon
AU  - Chae JM
AD  - Department of Orthodontics, School of Dentistry, Wonkwang University, Wonkwang 
      Dental Research Institute, Iksan, South Korea, Postgraduate Orthodontic Program, 
      Arizona School of Dentistry & Oral Health, A. T. Still University, Mesa, Ariz. 
      Electronic address: jongmoon@wku.ac.kr.
LA  - eng
PT  - Journal Article
DEP - 20210508
PL  - United States
TA  - Am J Orthod Dentofacial Orthop
JT  - American journal of orthodontics and dentofacial orthopedics : official 
      publication of the American Association of Orthodontists, its constituent 
      societies, and the American Board of Orthodontics
JID - 8610224
SB  - IM
MH  - *Dentition
MH  - Finite Element Analysis
MH  - Incisor
MH  - *Maxilla
MH  - Tooth Movement Techniques
EDAT- 2021/05/12 06:00
MHDA- 2021/08/04 06:00
CRDT- 2021/05/11 05:52
PHST- 2020/02/01 00:00 [received]
PHST- 2020/03/01 00:00 [revised]
PHST- 2020/04/01 00:00 [accepted]
PHST- 2021/05/12 06:00 [pubmed]
PHST- 2021/08/04 06:00 [medline]
PHST- 2021/05/11 05:52 [entrez]
AID - S0889-5406(21)00252-3 [pii]
AID - 10.1016/j.ajodo.2020.04.029 [doi]
PST - ppublish
SO  - Am J Orthod Dentofacial Orthop. 2021 Aug;160(2):259-265. doi: 
      10.1016/j.ajodo.2020.04.029. Epub 2021 May 8.