Masseter muscle thickness in growing individuals and its relation to facial morphology

Raadsheer, M.C.; Kiliaridis, Stavros; Eijden, T.M.G.J. van; Ginkel, F.C. van; Prahl-Andersen, Birte

doi:10.1016/0003-9969(95)00136-0

Cited by 179 publications

(180 citation statements)

References 17 publications

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“…The ultrasound examination of the masticatory muscles is a reproducible and easy-to-use method to obtain the function patterns of the masticatory muscles that can be directly correlated with the bite force [25,26]. The results obtained in this study are consistent with these findings.…”

Section: Discussionsupporting

confidence: 88%

Effect of Radiation on the Performance of the Stomatognathic System – a Pilot Study

Palinkas¹

2014

JDODT

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The purpose of this study was to evaluate the Electromyography (EMG), thickness of the masseter and temporal muscles, maximal bite force in individuals with head and neck cancer treated with radiotherapy. The patterns of the muscle activity were evaluated by means of the EMG recordings of the masseter and temporal muscles; bilaterally during the following clinical conditions: rest, protrusion, right and left lateral excursions and Maximum Habitual Intercuspation (MHI). Muscle thickness was evaluated using ultrasound at rest and in MHI. Maximal bite force in the right and left molar regions of 10 fully dentate individuals with head and neck cancer was evaluated after radiotherapy and compared with a control group. The EMG means showed that at rest, protrusion, and left lateral excursion, there were statistically significant differences (p < 0.05). On evaluation with ultrasound, the muscle thickness values were higher for individuals with head and neck cancer at rest and in MIH, with statistically significant results found only for the right temporal during the MIH. Participants with head and neck cancer treatment were evaluated in the present study showed higher electromyographic activity when compared with the control group for all clinical situations. The treatment used with patients undergoing head and neck cancer increased the electromyographic activity, the muscle thickness, and the bite force when compared to control subjects. The results suggest a muscle dysfunction of the stomatognathic system in individuals with head and neck cancer treatment evaluated in the present study.

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Section: Discussionsupporting

confidence: 88%

Effect of Radiation on the Performance of the Stomatognathic System – a Pilot Study

Palinkas¹

2014

JDODT

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“…This may have resulted in an imbalance between tooth size and jaw size, increasing the incidence of malocclusion. Numerous studies have shown a relationship between masticatory muscle function and craniofacial growth (4)(5)(6)(7). Mastication has a marked influence on mandibular growth and development (8).…”

Section: Introductionmentioning

confidence: 99%

Craniofacial Development in Rats Fed on Powdered Diet Following Extraction of All Upper Molars

Abo¹,

Ogawa²,

Shimizu³

2014

Int J Oral-Med Sci

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Growth of the craniofacial bone is a complex biological phenomenon induced by highly coordinated interaction between genetic and environmental factors. The purpose of this study was to confirm whether the environmental factors, namely powdered diet and extraction of all upper molars, have an influence on the cranium and mandibular bone size, bone volume, mineral bone density, widths between left and right condyles and gonions, and intra-arch widths at the first and third molars in rat mandibles.Ten 5-week-old male Wister rats were fed on powdered diet after extraction of all upper molars (experimental group=5 rats) and pellet diet without extraction of molars (control group=5 rats) for 20 weeks. At 20 weeks of age, the animals were examined by Microcomputer tomography. The mean values of the measurements in the two groups were compared.There was no significant difference between the groups in the cranial sizes. The vertical lengths were significantly shorter in the experiment group than the control group while no significant difference was observed in the mandibular horizontal lengths and widths at the left and right condyles and gonions. The mandibular volume and bone mineral density in the experimental group were significantly lower than that of the control group. The intraarch width at the lower third molars was also significantly shorter in the experimental group than the control group.

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“…Furthermore, our findings could be related to the adaption of the skeleton to mechanical loads during growth [27][28][29]. The mandibular alveolar process is part of the skeleton and is subjected to repetitive loads during mastication, thus a denser bone structure could be expected from puberty to adulthood as the mechanical loading increases with muscular mass and strength [30,31].…”

Section: Discussionmentioning

confidence: 66%

Evaluation of changes in trabecular alveolar bone during growth using conventional panoramic radiographs

Pham

Kiliaridis

2011

Acta Odontologica Scandinavica

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Objective. To assess changes of the alveolar trabecular bone during growth using panoramic radiographs and to detect possible differences in trabecular bone patterns when comparing individuals of various ages and genders. Materials and methods. Conventional panoramic radiographs of 18 young (eight females, 10 males) and 21 adult (12 females, nine males) subjects were taken at 2 years (T1) and 10 years (T2) after the end of orthodontic treatment. At T1, mean ages were 15.6 ± 0.9 years and 31.3 ± 9.7 years in the young and the adult groups, respectively. A three-scale visual analysis was used to evaluate bilaterally the alveolar bone trabeculation in the interdental spaces, from the distal side of the first mandibular premolar to the mesial side of the second lower molar. An analysis of variance (ANOVA), associated with t-tests whenever significance was found, was used to appraise the role of the age, the extent of the follow-up period and the gender on trabecular bone structure. Results. The adult group had a denser alveolar bone trabeculation, compared to the young group. This was also observed in the 8 years followup recordings among the adults, but no statistically significant differences were found in the growing individuals. No gender discrepancy was detected. Conclusions. From puberty to the middle age adulthood, denser alveolar bone trabeculation in the mandible seems to be related to the age. No differences were found between male and female subjects in the sample.

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Masseter muscle thickness in growing individuals and its relation to facial morphology

Cited by 179 publications

References 17 publications

Effect of Radiation on the Performance of the Stomatognathic System – a Pilot Study

Effect of Radiation on the Performance of the Stomatognathic System – a Pilot Study

Craniofacial Development in Rats Fed on Powdered Diet Following Extraction of All Upper Molars

Evaluation of changes in trabecular alveolar bone during growth using conventional panoramic radiographs

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