Changes in occlusal contact area and average bite pressure during treatment of anterior crossbite in primary dentition

2004 ◽  
Vol 28 (1) ◽  
pp. 75-79 ◽  
Author(s):  
Yasutaka Yawaka ◽  
Syouji Hironaka ◽  
Akemi Akiyama ◽  
Ikuko Matzuduka ◽  
Chihiro Takasaki ◽  
...  

The purpose of this study was to examine changes in functional parameters of patients with anterior crossbite in primary dentition during orthodontic treatment. Occlusal contact area (OCA), average bite pressure (ABP) and integrated occlusal load (IOL) were measured. Data obtained before the start of treatment (period A), data obtained when crossbite had improved (period B) and data obtained when the appliance had been removed (period C) were compared. OCA showed the lowest value in period B, and then gradually increased. ABP increased until period B and then declined or became constant. OCA and IOL showed significant differences in periods A and B and periods B and C (p<0.05). The results suggest that about 6 months is required for stability of the occlusion and acquisition of function in the new occlusion after improvement of crossbite.

2010 ◽  
Vol 40 (3) ◽  
pp. 176 ◽  
Author(s):  
Yoon-Jeong Choi ◽  
Chooryung J. Chung ◽  
Kyung-Ho Kim

2006 ◽  
Vol 137 (7) ◽  
pp. 978-983 ◽  
Author(s):  
Arzu Alkan ◽  
Ilker Keskiner ◽  
Selim Arici ◽  
Shuichi Sato

1999 ◽  
Vol 78 (7) ◽  
pp. 1336-1344 ◽  
Author(s):  
O. Hidaka ◽  
M. Iwasaki ◽  
M. Saito ◽  
T. Morimoto

2021 ◽  
pp. 105566562199173
Author(s):  
Sayumi Miura ◽  
Hiroshi Ueda ◽  
Koji Iwai ◽  
Cynthia Concepcion Medina ◽  
Eri Ishida ◽  
...  

Objective: To determine whether orthodontically treated patients with cleft lip and palate (CLP) possess a different masticatory function than those of untreated patients with normal occlusion. Design: Occlusal contact area, occlusal force, as well as masseter and anterior temporal muscular activity were measured during maximum voluntary clenching (MVC) tests. Mandibular left and right lateral movements during mastication were also assessed. To further elucidate the nature of masticatory function, especially to determine the rate of abnormal jaw movement patterns, a parametric error index (EI) was set. Finally, masticatory efficiency was evaluated with a glucose sensitive measuring device. Participants: Fifteen patients with CLP who had previously completed the orthodontic treatments required to achieve an acceptable and more harmonious occlusion accepted to volunteer in this study along with 21 untreated patients who already possessed a normal occlusion. Results: Patients with CLP showed a significantly lower occlusal force, reduced occlusal contact area, and decreased masticatory efficiency as well as significantly higher EI value when compared with controls. However, there was no significant difference when analyzing muscle activity, although masticatory efficiency was significantly different between the 2 groups. Despite this result, the scores obtained by the patients with CLP in the masticatory efficiency tests were still in the normal range. Conclusions: Orthodontic treatment for adult patients with CLP provides a satisfactory result for the patients’ masticatory ability albeit significantly less ideal compared with untreated patients with normal occlusion.


2017 ◽  
Vol 74 (2) ◽  
pp. 138-144 ◽  
Author(s):  
Jelena Todic ◽  
Ankica Mitic ◽  
Dragoslav Lazic ◽  
Radivoje Radosavljevic ◽  
Milos Staletovic

Background/Aim. Bruxism is a parafunctional activity of the masticatory system, which is characterized by clenching or grinding of teeth. The purpose of this study was to determine whether the presence of bruxism has impact on maximum bite force, with particular reference to the potential impact of gender on bite force values. Methods. This study included two groups of subjects: without and with bruxism. The presence of bruxism in the subjects was registered using a specific clinical questionnaire on bruxism and physical examination. The subjects from both groups were submitted to the procedure of measuring the maximum bite pressure and occlusal contact area using a single-sheet pressure-sensitive films (Fuji Prescale MS and HS Film). Maximal bite force was obtained by multiplying maximal bite pressure and occlusal contact area values. Results. The average values of maximal bite force were significantly higher in the subjects with bruxism compared to those without bruxism (p < 0.001). Occlusal contact area was significantly higher in the subjects suffering from bruxism (p < 0.001), while the maximal bite pressure values did not show a significant difference between the studied groups (p > 0.01). Maximal bite force was significantly higher in the males compared to the females in all segments of the research. Conclusion. The presence of bruxism influences the increase in the maximum bite force as shown in this study. Gender is a significant determinant of bite force. Registration of maximum bite force can be used in diagnosing and analysing pathophysiological events during bruxism.


1988 ◽  
Vol 32 (4) ◽  
pp. 767-773
Author(s):  
Nobuaki Shiina ◽  
Yoshiaki Okikura ◽  
Kaoru Iwase ◽  
Hiroaki Hirata ◽  
Yutaka Miida ◽  
...  

2021 ◽  
Vol 36 (6) ◽  
pp. 1139-1146
Author(s):  
Ye-Jin Kim ◽  
Kyung-Ho Ko ◽  
Yoon-Hyuk Huh ◽  
Lee-Ra Cho ◽  
Chan-Jin Park

2019 ◽  
pp. 394-398.e2
Author(s):  
John R. Christensen ◽  
Henry Fields

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