Occlusal bite force changes during fixed orthodontic treatment in patients with different vertical facial morphology

Prema, A; Vimala, G; Rao, U K AKhil; Shameer, Abdul; Gayathri, .

doi:10.1016/j.sdentj.2019.02.044

Cited by 5 publications

(6 citation statements)

References 21 publications

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“…Reductions in bite force were also expected since bite force is one of the most critical factors of masticatory performance variability (R 2 ¼ .55, P , .001) 27 and because bite force reduction can be related to transient occlusal changes or periodontal mechanoreceptor sensibility. 14,19 Occlusal changes explained 10%-20% of maximum bite force variation in adults. 28 Just after initial bonding of appliances, greater deflection of the archwires to obtain bracket engagement may lead to greater pain, consequently affecting bite force.…”

Section: Discussionmentioning

confidence: 97%

“…Fixed labial appliances were bonded in 341 patients, while 70 individuals used clear aligners and 69 received lingual appliances. Nine studies 3,4,[14][15][16][17][18][19][20] investigated outcomes exclusively of fixed labial appliances. Two studies compared labial to lingual appliances, 21,22 while another two articles compared labial appliances to clear aligners.…”

Section: Selection and Characteristics Of Included Studiesmentioning

confidence: 99%

“…6,23 The remaining two studies reported outcomes only from clear aligners 24 or fixed lingual appliances. 25 Mastication was objectively assessed by masticatory performance (X 50 ), 3,4,15,16 swallowing threshold (particle size and number of cycles), 3,4,17 maximum bite force, 14,19 masseter muscle electromyography, 17,24 subjective mastication (visual analogue scale of 10 cm), 22,23 and questionnaires. 6,18,21,25 Only one study 20 reported data regarding nutritional assessment before and after the activation of a fixed labial appliance (3-day diet diary).…”

Section: Selection and Characteristics Of Included Studiesmentioning

confidence: 99%

“…No serious problems were detected in the remaining domains (Figure 2A). For the non-randomized studies (before and after design), the risk of bias was considered low in four studies, 4,14,16,19 moderate in three, 3,15,24 and serious in the remaining six studies. 6,17,18,29,22,25 In the first domain, bias was considered serious 6,18,22,25 or moderate 3,15,20 due to confounding factors or small sample size.…”

Section: Risk Of Biasmentioning

confidence: 99%

See 3 more Smart Citations

Activation and installation of orthodontic appliances temporarily impairs mastication:

Duarte¹,

Bezerra²,

Flores‐Mir³

et al. 2021

The Angle Orthodontist

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Objectives To investigate the masticatory (masticatory performance, bite force, swallowing threshold, muscle activity, and questionnaires) and nutritional (nutrient intake) impacts of the activation and/or installation of different orthodontic appliances (fixed labial, lingual appliances, and clear aligners). Materials and Methods Six electronic databases and gray literature were searched (up to May 2021) for relevant studies evaluating mastication and nutrition after activation/installation of orthodontic appliances. This review followed PRISMA guidelines and was registered at PROSPERO (CRD42020199510). The risk of bias (RoB 2 and ROBINS-I) and evidence quality Grading of Recommendations Assessment, Development, and Evaluation were analyzed. Results Of 4226 recorded and screened, 15 studies were finally included. Masticatory performance (standardized mean difference [SMD]: 1.069; 95% coefficient interval [CI]: 0.619 to 1.518) and bite force (SMD: -2.542; 95% CI: -4.867 to -0.217) reduced in the first 24 to 48 hours of fixed labial appliance installation/activation, but they were both normalized after 30 days (P > .05). The swallowing threshold remained constant (P > .05). Nutritional intake was rarely reported but showed copper (P = .002) and manganese (P = .016) reductions, with higher calorie and fat intake (P < .05). Lingual appliances impacted chewing more than labial, and clear aligner wearers reported fewer chewing problems (P < .001). Low to very low levels of evidence were found. Conclusions Based on low to very low levels of evidence, mastication was reduced during the first 24 to 48 hours of fixed labial appliance activation/installation, but it was transitory (up to 30 days). Due to insufficient data, the nutritional impact of orthodontic appliances was not conclusive.

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Section: Discussionmentioning

confidence: 97%

Section: Selection and Characteristics Of Included Studiesmentioning

confidence: 99%

Section: Selection and Characteristics Of Included Studiesmentioning

confidence: 99%

Section: Risk Of Biasmentioning

confidence: 99%

See 2 more Smart Citations

Activation and installation of orthodontic appliances temporarily impairs mastication:

Duarte¹,

Bezerra²,

Flores‐Mir³

et al. 2021

The Angle Orthodontist

View full text Add to dashboard Cite

show abstract

“…As the gonial angle increases, the mechanical advantages of the muscles decrease and the equivalent force of the muscle produces smaller force in occlusion, suggesting that the occlusal force reflects the relationship between form and function (17). Some data show that the bite force varies depending on the vertical facial morphology and individuals with hypodivergent type have higher values of the force compared to hyperdivergent (11,18). Other studies do not find difference in maximum masticatory force in Angle class I, II and III (19).…”

Section: Discussionmentioning

confidence: 99%

Evaluation Of The Maximum Bite Force In Individuals With Different Verical Facial Types

Bogdanov¹

2022

MedInform

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Studies on the maximum bite force in subjects with different facial types, age and gender are scarce and the values in some cases are controversial. The aim of this study is to evaluate the maximum bite force in individuals with different facial types and of both genders and to compare them with the results, reported in literature. Material and Methods. The study was performed on 65 subjects -31 males and 34 females, with mean age 18.4 ± 6.1 years.Maximum bite force was measured by a gnathodynamometer, positioned in the first molar area on the left and right side. The subjects were divided into 3 groups depending on the vertical facial patternhypo-, normo-and hyperdivergent. Statistical analysis was performed by using IBM SPSS 23.0 statistical package. Results. Our data show that maximum bite force is lowest in the hyperdivergent facial type compared to hypo-and normodivergent.No difference was found in the maximum bite force between male and female subjects. Conclusion. From the analysis of the data, it can be concluded that there is no statistically significant difference in the maximum bite force between hypodivergent and normodivergent individuals while in hyperdivergent individuals the values were significantly lower.

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The Condition of the Masseter Muscles After Orthodontic Treatment with Fixed Appliances

Szajkowski,

Pasek,

Cieślar

2024

Diagnostics

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Background: One of the methods used in malocclusion treatment is the use of fixed appliances. Research conducted so far has revealed that changes in bite force occurring over the course of orthodontic treatment are directly related to the functional status of the masticatory muscles. It is therefore advisable to find out how the biomechanical parameters of the masseter muscles change after treatment with the application of fixed appliances. Methods: The study material comprised 74 individuals, divided into the study group (n = 37) treated by means of fixed orthodontic appliances over the average time of 12.27 months and the control group (n = 37) consisting of individuals did not undergo orthodontic treatment. The biomechanical properties of the masseter muscles were examined by means of myotonometry. Results: Upon completion of orthodontic treatment, the values of the parameters of tension, stiffness, and elasticity of masseter muscles located on both sides did not statistically significantly differ between patients from the study group who were treated by means of fixed orthodontic appliances and patients from control group who did not undergo orthodontic treatment. Conclusions: Treatment of malocclusions with the use of fixed appliances does not affect the biomechanical and visco-elastic properties of the masseter muscles (stiffness, tension, and elasticity) assessed by means of myotonometry and it appears safe for masticatory muscles.

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Occlusal bite force changes during fixed orthodontic treatment in patients with different vertical facial morphology

Cited by 5 publications

References 21 publications

Activation and installation of orthodontic appliances temporarily impairs mastication:

Activation and installation of orthodontic appliances temporarily impairs mastication:

Evaluation Of The Maximum Bite Force In Individuals With Different Verical Facial Types

The Condition of the Masseter Muscles After Orthodontic Treatment with Fixed Appliances

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