Application of "Prescale" as an Aid to Clinical Diagnosis in Orthodontics

Kitafusa, Y

doi:10.2209/tdcpublication.45.99

Cited by 19 publications

(15 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Males have thicker masseter muscle and stronger occlusal force than females [34, 35], and subjects with strong occlusal force presented with a brachyfacial pattern [36, 37], as observed in our male subjects. Therefore, differences in the tested measurements between sexes observed in this study may be caused by the discrepancy in occlusal force generated by the masseter muscle.…”

Section: Discussionmentioning

confidence: 55%

Association between skeletal morphology and agenesis of all four third molars in Japanese orthodontic patients

et al. 2018

View full text Add to dashboard Cite

The purpose of this study was to clarify differences in skeletal morphologies between male and female orthodontic patients with and without agenesis of all four third molars. A total of 64 patients (32 males and 32 females) with agenesis of all four third molars without agenesis of other teeth were selected as the third molars agenesis group (group 1). In addition, 64 patients (32 males and 32 females) with all these teeth were selected as controls (group 2). Lateral cephalograms taken between the ages of 14 and 30 years were used to compare skeletal morphology between groups 1 and 2 and between sexes. Maxillary length (P < 0.001), lower facial height (P < 0.05), gonial angle (P < 0.001) and mandibular plane angle (P < 0.001) were significantly smaller in group 1 than in group 2. Irrespective of the presence or absence of all four third molars, males had significantly smaller lower facial height (P < 0.01) and mandibular plane angle (P < 0.001) and significantly greater total mandibular length (P < 0.001), mandibular body length (P < 0.001) and mandibular ramus height (P < 0.001) than females. Japanese orthodontic patients with agenesis of all four third molars had significantly small maxillary length, lower facial height, gonial angle and mandibular plane angle.

show abstract

Section: Discussionmentioning

confidence: 55%

Association between skeletal morphology and agenesis of all four third molars in Japanese orthodontic patients

et al. 2018

View full text Add to dashboard Cite

show abstract

“…12 In a previous study, occlusal contact area and force were reported to be greater in male patients than in female patients. Further, the occlusal contact area was reported to be larger in patients aged 40 years, while there was no statistically significant difference in the occlusal contact area among the three age groups (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30), and 31-40 years).…”

Section: Discussionmentioning

confidence: 91%

“…In addition, taking into account studies suggesting a correlation between vertical skeletal pattern, occlusal force, and occlusal contact area, the mandibular plane and gonial angles were incorporated into the linear mixed model as covariates. 17,18 Patients with a temporomandibular joint disorder often have poor masticatory function. 20 Therefore, patients diagnosed with temporomandibular joint disorders based on the questionnaires administered at the first visit or clinical and radiographic examination were excluded from the study.…”

Section: Discussionmentioning

confidence: 99%

Changes in occlusal function after extraction of premolars: 2-year follow-up

Yoon

Hwang

Chung

et al. 2017

The Angle Orthodontist

View full text Add to dashboard Cite

Objective: To determine the effects of extraction and the number of teeth extracted on changes in occlusal function by measuring occlusal contact area and force before and after orthodontic treatment with a fixed appliance. Materials and Methods: Female patients treated with a fixed appliance were divided into nonextraction (n ¼ 36), two maxillary premolar extraction (n ¼ 31), and four premolar extraction (n ¼ 18) groups. Bite pressure-sensitive films were used to analyze the occlusal contact area and force. Measurements were performed before treatment (Pre-Tx), immediately afterward (After-Tx), and 2 years later (2Y After-Tx). The data were analyzed using a linear mixed model and the post hoc Bonferroni test. Results: The occlusal contact area and force after treatment decreased significantly compared with Pre-Tx values but were increased 2 years later in all groups. There were no significant differences in occlusal contact area or force during the entire observation period among the three groups (P . .05). The occlusal contact area and force in the nonextraction and two maxillary premolar extraction groups recovered to Pre-Tx levels 2 years later (P . .05). The occlusal contact area in the four premolar extraction group was significantly lower than the Pre-Tx level after 2 years of retention (P , .05). Conclusions: The occlusal contact area and force showed a tendency to decrease immediately after treatment and then gradually increase to pretreatment levels during the observation period. However, the occlusal contact area did not recover fully after 2 years in the four premolar extraction group. (Angle Orthod. 2017;87:703-708.)

show abstract

“…According to Kitafusa 9) , occlusal force, occlusal contact area, and average occlusal pressure are greatest in cases of mandibular prognathism, crowding, maxillary prognathism, cross bite, and open bite, in that order. Among the present 14 patients undergoing further occlusal force evaluation after 1 year or more of retention, 2 showed large occlusal forces of ≥900 N at pre-treatment, and both were cases of mandibular prognathism.…”

Section: Dental Prescale Measurement Resultsmentioning

confidence: 99%

Effect of Orthodontic Treatment on Occlusal Condition and Masticatory Function

Makino

Nomura

Motegi

et al. 2014

Bull. Tokyo Dent. Coll.

View full text Add to dashboard Cite

Change in occlusion and masticatory function after orthodontic treatment was investigated by a follow-up study in a group of 14 patients with malocclusion (3 men, 11 women, aged 12-46 years). All completed a food questionnaire and underwent occlusal force evaluation using a pressure-sensitive sheet at pre-treatment, post-treatment, and during the retention phase. The number of foods identified as difficult to eat decreased at post-treatment in all patients. The mean occlusal force was 646.65223.5 N at pretreatment, 401.15109.1 N at post-treatment, and 530.65183.6 N during the retention phase. The mean occlusal contact area was 14.155.9 mm 2 at pre-treatment, 6.551.7 mm 2 at post-treatment, and 9.853.8 mm 2 during the retention phase. The mean average occlusal pressure was 47.656.6 MPa at pre-treatment, 62.255.7 MPa at post-treatment, and 55.456.7 MPa during the retention phase. A Dental Prescale film evaluation revealed that occlusal force and occlusal contact area increased over the 1-year retention phase. An improvement in level of satisfaction with mastication ability was reported at posttreatment and during the retention phase. Average occlusal pressure at post-treatment increased significantly (p<0.01), which may account for the observed increase in the ability of the patients to bite through food. These results suggest that an increase in average occlusal pressure improves level of satisfaction with mastication ability.

show abstract

Application of "Prescale" as an Aid to Clinical Diagnosis in Orthodontics

Cited by 19 publications

References 22 publications

Association between skeletal morphology and agenesis of all four third molars in Japanese orthodontic patients

Association between skeletal morphology and agenesis of all four third molars in Japanese orthodontic patients

Changes in occlusal function after extraction of premolars: 2-year follow-up

Effect of Orthodontic Treatment on Occlusal Condition and Masticatory Function

Contact Info

Product

Resources

About