Evaluation of occlusal contacts in maximum intercuspation using the T-Scan system

García, Valeria; Cartagena, Álvaro; Sequeros, O. González

doi:10.1046/j.1365-2842.1997.00586.x

Cited by 68 publications

(20 citation statements)

References 7 publications

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“…The values obtained by multiplying the number of contact points and the value of the color scale from the load graph of T-scan were considered to be the occlusal forces on the right and left sides 11. To evaluate the distribution of the occlusal forces, the asymmetry index of occlusal force was calculated using the following formula.…”

Section: Resultsmentioning

confidence: 99%

Functional evaluation of orthopedic and orthodontic treatment in a patient with unilateral posterior crossbite and facial asymmetry

et al. 2014

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An 8-years old boy with facial asymmetry and unilateral posterior crossbite on the left side received orthopedic and orthodontic treatment. During the first phase of treatment, the narrow maxillary arch was expanded using an acrylic plate. Then, the acrylic plate was used as a bite block with occlusal indentations from the construction bite that was obtained with the incisors in a coincident dental midline. After the position of the mandible was stabilized, the second phase of orthodontic treatment was initiated using fixed appliances for detailing of the occlusion. Skeletal symmetry, ideal occlusion, and coincident dental midlines were thus achieved. Functionally, occlusal force balance and masticatory muscle activity were improved, and the chewing patterns were normalized.

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Section: Resultsmentioning

confidence: 99%

Functional evaluation of orthopedic and orthodontic treatment in a patient with unilateral posterior crossbite and facial asymmetry

et al. 2014

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“…Recent publications have reported T-scan III to show good reproducibility of surface measurements and registration of relative forces14,17,18, and Koos et al17 has shown that readings are unaffected by changing the sensor or repeating measurements. Not only has T-scan been found to provide reliable results in the identification of occlusal contact distribution17,21,22, a study comparing the sensitivity of various occlusal indicators found T-scan to be the only indicator unaffected by saliva 23. Moreover, a 2002 study of the T-Scan II system found that the system provided adequate repeatability in examining the occlusal contacts of complete prosthesis users as well as dentate subjects 24…”

Section: Discussionmentioning

confidence: 99%

Computerized analysis of occlusal contacts in bruxism patients treated with occlusal splint therapy

et al. 2013

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PURPOSEOcclusal splints are commonly used to prevent tooth wear caused by bruxism. However, the effects of splints on occlusion are still unclear. Although it is rarely alluded in literature, splints can provoke severe occlusal alterations and other complications. This study was aimed to identify differences in the responses of individuals with bruxism and healthy individuals to a full-arch maxillary stabilization splint in terms of occlusal changes.MATERIALS AND METHODSOcclusal contacts in 20 (5 male, 15 female) bruxism patients and 20 (5 male, 15 female) controls with normal occlusion were evaluated before and after occlusal splint therapy. T-Scan III, a computerized occlusal analysis system, was used to simultaneously measure occlusion and disclusion times as well as left-right and anterior-posterior contact distributions before splint therapy and 3 months after therapy. Wilcoxon and Mann-Whitney U tests were used for statistical analyses (α=.05).RESULTSNo differences were found in the posterior contact of bruxism patients before and after stabilization splint treatment. However, differences in posterior contact were observed between bruxists and normal individuals prior to treatment, and this difference disappeared following treatment.CONCLUSIONThe results of this study showed the use of a stabilization splint may not have an effect on occlusion. However, the area of posterior occlusal contact among bruxists was found to be greater than that of normal individuals. According to this study, the clinical use of splints may be harmless.

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“…Contact area has frequently been measured with T-Scan II equipment (Tekscan Inc., Boston, MA, USA),16,17 which is a reliable method for the analysis and evaluation of occlusal contact distribution in maximum intercuspation. This value is calculated by multiplying the number of tooth contacts recorded by the T-Scan sensor by the size of a single pixel (1.6 mm 2 ), thus reflecting occlusal conditions.…”

Section: Discussionmentioning

confidence: 99%

Differences in molar relationships and occlusal contact areas evaluated from the buccal and lingual aspects using 3-dimensional digital models

2012

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ObjectiveThe aims of this study were to use a 3-dimensional (3D) system to compare molar relationship assessments performed from the buccal and lingual aspects, and to measure differences in occlusal contact areas between Class II and Class I molar relationships.MethodsStudy casts (232 pairs from 232 subjects, yielding a total of 380 sides) were evaluated from both the buccal and lingual aspects, so that molar relationships could be classified according to the scheme devised by Liu and Melsen. Occlusal contact areas were quantified using 3D digital models, which were generated through surface scanning of the study casts.ResultsA cusp-to-central fossa relationship was observed from the lingual aspect in the majority of cases classified from the buccal aspect as Class I (89.6%) or mild Class II (86.7%). However, severe Class II cases had lingual cusp-to-mesial triangular fossa or marginal ridge relationships. Mean occlusal contact areas were similar in the Class I and mild Class II groups, while the severe Class II group had significantly lower values than either of the other 2 groups (p < 0.05).ConclusionsBuccal and lingual assessments of molar relationships were not always consistent. Occlusal contact areas were lowest for the Class II-severe group, which seems to have the worst molar relationships - especially as seen from the lingual aspect.

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Evaluation of occlusal contacts in maximum intercuspation using the T-Scan system

Cited by 68 publications

References 7 publications

Functional evaluation of orthopedic and orthodontic treatment in a patient with unilateral posterior crossbite and facial asymmetry

Functional evaluation of orthopedic and orthodontic treatment in a patient with unilateral posterior crossbite and facial asymmetry

Computerized analysis of occlusal contacts in bruxism patients treated with occlusal splint therapy

Differences in molar relationships and occlusal contact areas evaluated from the buccal and lingual aspects using 3-dimensional digital models

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