Comparison of Typical Chewing Patterns in Normal Children and Adults

Gibbs, Charles H.; Wickwire, Nann A.; Jacobson, Alex; Lundeen, Harry C.; Mahan, Parker E.; Lupkiewicz, Stefan M.

doi:10.14219/jada.archive.1982.0073

Cited by 74 publications

(53 citation statements)

References 17 publications

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“…8,10 There is a high prevalence of occlusal tooth wear in the primary dentition as a physiological condition, which determines greater contact areas, improving the masticatory function. [8][9][10]21 Median particle areas and bite force were not correlated with body variables. The expected influences of body size upon masticatory variables must occur later due to the increase in muscle mass.…”

Section: Discussionmentioning

confidence: 99%

“…A panoramic view of the changes that occur during growth may give insight into naturally occurring relationships between form and function. 8 The three years prior to initiation of the mixed dentition are crucial, in that normal changes of growth and functional adaptability occur. In young children, peripheral sensorimotor pathways that underlie the jaw stretch reflex are maturing as the child continues to acquire oral motor skills.…”

Section: Discussionmentioning

confidence: 99%

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Masticatory performance and bite force in children with primary dentition

Gavião

Raymundo²,

Rentes³

2007

Braz. oral res.

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The aim of this study was to evaluate the relationship between masticatory performance and maximum bite force in the primary dentition. The sample comprised 15 children of both genders, aged 3 to 5.5 years, with good systemic and oral health, presence of all primary teeth without large caries, no structural anomalies, without severe malocclusion, and no history of orthodontic treatment. They chewed one standardized silicone tablet for 20 strokes and the median areas of the chewed particles were measured by an optical digital system. Enhanced performance was measured by a decrease in the chewed particle areas and an increase in the amount of chewed particles. The bite force was determined using a transmitter pressurized tube connected to an analog/digital electronic circuit. Weight, height and body mass index (kg/m 2 ) were determined. The data were analyzed by descriptive statistics and Pearson or Spearman's correlations, after assessment of the normality of the distribution by Shapiro-Wilks' W-test. There was no correlation between bite force and particle area and amount (p > 0.05), neither were the body variables correlated with the masticatory variables (p > 0.05). It was concluded that the bite force was not a primary determinant of masticatory performance, and both variables were not dependent on body variables in the studied sample. Descriptors: Mastication; Bite force; Dentition, deciduous.Resumo: O objetivo deste estudo foi avaliar a correlação entre performance mastigatória e força de mordida máxima na dentição decídua. A amostra consistiu de 15 crianças de 3 a 5,5 anos de idade, de ambos os gêneros, apresentando boa saúde bucal e sistêmica, com a presença de todos os dentes decíduos, sem cáries extensas, sem anomalias estruturais, sem maloclusão severa e ausência de tratamento ortodôntico. Um tablete de silicone foi mastigado durante 20 ciclos e as áreas medianas das partículas foram mensuradas por um sistema óptico digital. A performance mastigatória foi considerada melhor quanto menor o tamanho das partículas mastigadas e quanto maior o número das mesmas. Para a força de mordida utilizou-se um tubo transmissor pressurizado, conectado a circuito eletrônico analógico/digital. O peso, a altura e o índice de massa corporal (kg/m 2 ) foram determinados. Os dados foram analisados pela estatística descritiva e correlacionados pelo coeficiente de Pearson ou Spearman, após a avaliação da normalidade da distribuição pelo teste de Shapiro-Wilks. Não houve correlação significativa entre a força de mordida e as áreas e o número das partículas (p > 0,05), assim como as variáveis corporais não se correlacionaram com as variáveis mastigatórias (p > 0,05). Concluiu-se que a força de mordida não foi o principal determinante da performance mastigatória na amostra avaliada, e ambas não foram dependentes das variáveis corporais. Descritores: Mastigação; Força de mordida; Dentição decídua.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Masticatory performance and bite force in children with primary dentition

Gavião

Raymundo²,

Rentes³

2007

Braz. oral res.

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“…16 4. Masticatory efficiency of MD and DDD patients showed significant improvement after therapy but depending on the measurement method healthy patients seemed to chew better.…”

Section: For Patients With Unilateral Muscular Disorders (Md) or Unilmentioning

confidence: 99%

Clinical Study on the Comparison of Masticatory Efficiency and Jaw Movement Before and After Temporomandibular Disorder Treatment

Kümbüloğlu¹,

Saracoglu²,

Bingöl³

et al. 2013

CRANIO®

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In this clinical study, pre-and post-rehabilitation changes in intraborder mandible movements, chewing cycles, masticatory efficiencies, and borders of the chewing area of patients with unilateral muscular disorders (MD) (n = 20) or unilateral disc derangement disorders (DDD) (n = 20) of temporomandibular disorder (TMD) were observed and compared with healthy individuals with full dentition (n = 20) (48 female, 12 male; mean age: 28). The MD patients received stabilization splints and the DDD patients, anterior positioning splints for six weeks. Symptoms, such as muscle pain, TMJ pain, headache, chewing difficulty, and maximum mouth opening, showed significant improvements after splint therapy for both MD (p = 0.000) and DDD (p = 0.000) patients, but lateral excursion and protrusion were not significantly changed (p > 0.05). Chewing efficacy and chewing cycles improved significantly (p < 0.05) in both the MD (p < 0.05) and DDD (p < 0.05) groups, but only the MD group was comparable to the control group after treatment. Pre-and post-rehabilitation chewing cycles along the frontal plane on both sides in the MD group were similar to the control group. Considering the majority of the improvements in the diagnostic measures, patients with MD and DDD may benefit from occlusal splint therapy. ABSTRACT:In this clinical study, pre-and post-rehabilitation changes in intraborder mandible movements, chewing cycles, masticatory efficiencies and borders of chewing area of patients with unilateral muscular disorders (MD) (n=20), unilateral disc derangement disorders (DDD) (n=20) of temporomandibular disorder (TMD) were observed and compared with healthy individuals with full dentition (n=20) (48 female, 12 male; mean age: 28). MD patients received stabilization splints and DDD patients anterior positioning splints for a duration of 6 weeks. Symptoms such as muscle pain, TMJ pain, headache, chewing difficulty, maximum mouth opening showed significant improvements after splint therapy for both MD (p=0.000) and DDD (p=0.000) patients but lateral excursion and protrusion were not significantly changed (p>0.05). Chewing efficacy and chewing cycles improved significantly (p<0.05) in both MD (p<0.05) and DDD (p<0.05) groups but only MD group was comparable to control group after treatment. Pre-and post-rehabilitation chewing cycles along frontal plane on both sides of MD group were similar to control group. Considering the majority of the improvements in the diagnostic measures, patients with MD and DDD may benefit from occlusal splint therapy.4

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“…There were some examples of MZ twin pairs exhibiting consistent discordance for handedness and grinding side preference, thus demonstrating consistent mirror imaging for these traits. Taking inspiration from Gibbs et al, 19 the authors intend to follow up the same twins in the future to investigate whether their preferred grinding side changes from primary to permanent dentitions, as the chewing cycle direction changes from the primary to permanent dentitions. This may shed some more light on the existence and location(s) of a "bruxing centre" in the brain.…”

Section: Resultsmentioning

confidence: 99%

Prevalence and side preference for tooth grinding in twins

Dooland

Townsend²,

Kaidonis³

2006

Australian Dental Journal

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Background:Estimates of the prevalence of tooth grinding in children range considerably, reflecting different methods of recording. The main aims of this study were to determine the prevalence of tooth grinding in monozygotic (MZ) and dizygotic (DZ) twin pairs by assessing wear faceting on the primary canines, and to compare the faceting on the right and left to determine whether children have a side preference for grinding. Methods: The sample consisted of 116 MZ twin pairs and 124 dizygous DZ twin pairs, all participants in an ongoing study of dento-facial development at the dental schools in Adelaide and Melbourne. Evidence of wear faceting on primary maxillary and mandibular canine tips was recorded from dental casts, and the side with the larger wear facet recorded. Types of occlusal relationship, handedness, zygosity and gender were also recorded, and associations between variables analysed statistically. Results: Canine tip wear facets were found in 100 per cent of the sample, and grinding was lateralized in 59 per cent of children. MZ twin pairs showed a higher discordance for grinding side preference than DZ twin pairs (33.8 per cent compared with 16.8 per cent), providing evidence of a mirror-imaging effect for grinding side preference. There was no strong evidence that individuals had the same preference for grinding side and handedness, although right-handers (RH) showed a preference for a grinding side more often than non-righthanders (NRH) (63.6 per cent compared with 51.2 per cent), consistent with previous findings that RHs display more cerebral lateralization than NRHs. Conclusions: Tooth grinding appears to be a universal phenomenon in children and is commonly expressed more on one side than the other. The significantly higher discordance for grinding side preference in MZ twin pairs compared with DZ twin pairs may reflect a mirror-imaging effect in the former. However, at present we have no evidence to suggest that handedness and preferred tooth grinding side are associated. A D R F R E S E A R C H R E P O R TKey words: Twins, bruxism, side preference, handedness, primary teeth.Abbreviations and acronyms: DZ = dizygotic; MI = mirror imaging; MZ = monozygotic; NRH = non-right-handedness.

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Comparison of Typical Chewing Patterns in Normal Children and Adults

Cited by 74 publications

References 17 publications

Masticatory performance and bite force in children with primary dentition

Masticatory performance and bite force in children with primary dentition

Clinical Study on the Comparison of Masticatory Efficiency and Jaw Movement Before and After Temporomandibular Disorder Treatment

Prevalence and side preference for tooth grinding in twins

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