Computerized analysis of occlusal contacts after lingual orthodontic treatment in adults

Cohen-Lévy, Julia; Cohen, Nicolas

doi:10.1016/j.ortho.2011.09.009

Cited by 15 publications

(14 citation statements)

References 24 publications

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“…Occlusal contact is traditionally assessed with articulating paper or other thin strips whose pull-out force at intercuspation helps to reveal initial contacts. Dark, wide marks are understood to be sites of high pressure, whereas lighter marks are associated with sites subjected to lesser loads, and the presence of numerous, similar markings is suggestive of equal, evenly distributed loads 14. However, as some authors have noted, the marks produced by articulating paper may be difficult to reproduce and lend themselves to subjective interpretation, and because they can be affected by patient bite quality, occlusal morphology and salivary impregnation of dental surfaces, which can diffuse the articulating paper ink, they can result in false positives 15.…”

Section: Discussionmentioning

confidence: 99%

“…2) contacts instantaneously as the patient bites on the sensor, registering multiple consecutive opening/closing cycles 14. Not only does T-Scan measure the intensity and timing of every contact, it translates this information into easily interpreted graphics.…”

Section: Discussionmentioning

confidence: 99%

“…Not only does T-Scan measure the intensity and timing of every contact, it translates this information into easily interpreted graphics. Introduced in the United States nearly 30 years ago, the system was revised following doubts with regard to its reliability in occlusal analysis, and improvements were duly noted in a number of studies 14,17-20. 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.…”

Section: Discussionmentioning

confidence: 99%

“…Introduced in the United States nearly 30 years ago, the system was revised following doubts with regard to its reliability in occlusal analysis, and improvements were duly noted in a number of studies 14,17-20. 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.…”

Section: Discussionmentioning

confidence: 99%

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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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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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

et al. 2013

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“…18,21,22 A vast body of evidence supports the acceptable accuracy of computerized occlusal analysis as an occlusal indicator. 18,[21][22][23][24] The aim of this study was to evaluate postinsertion posterior single-implant restoration occlusion changes at different intervals using the T-Scan III computerized occlusal analysis system. The null hypothesis was that the occlusion developed at placement of single implantsupported prostheses opposed by natural teeth would not change over time.…”

Section: 5005/jp-journals-10024-2151mentioning

confidence: 99%

Post-insertion Posterior Single-implant Occlusion Changes at Different Intervals: A T-Scan Computerized Occlusal Analysis

Madani¹,

Nakhaei²,

Alami³

et al. 2017

The Journal of Contemporary Dental Practice

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Aim:The aim of this prospective cohort study was to evaluate the postinsertion posterior single-implant occlusion changes at 3-and 6-month intervals using T-Scan computerized occlusal analysis. Materials and methods:A total of 21 patients received single implant, opposed by natural dentition, in posterior regions of the maxilla or mandible (13 premolar, 8 molar) and were finally restored with cemented-retained metal-ceramic crowns. The occlusal contacts were equilibrated according to the implantprotective occlusion concept to develop light contact with heavy occlusion and no contact with light occlusion in maximum intercuspation. The percentage of force applied to the implant crowns (POFI) and contralateral teeth (POFT) was evaluated using T-Scan computerized occlusal analysis at prosthesis insertion, 3-and 6-month follow-up appointments. The data were statistically analyzed using Friedman test and Wilcoxon post hoc test (α = 0.05). Results:The POFI values at the 6-and 3-month follow-up appointments were significantly higher than those at prostheses insertion (p = 0.001 and p = 0.005 respectively). In addition, there were significant differences between the POFI at 3-and 6-month follow-up (p = 0.020). However, the POFT values at 3-and 6-month follow-up appointments were significantly lower than those at baseline (p < 0.001). Conclusion:The intensity of occlusal contacts of implantsupported prostheses opposed by natural dentition gradually Clinical significance: A periodic occlusal adjustment of implant-supported prostheses is necessary to prevent potential overloading from the movement of opposing natural dentition. Post-insertion Posterior Single-implant Occlusion Changes at Different Intervals: A T-Scan

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Changes in the distribution of occlusal forces in the course of the orthodontic retention phase

Fritz,

Daratsianos,

Bourauel

et al. 2023

J Orofac Orthop

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Purpose Aim of the present study was to assess the relative distribution of occlusal forces after orthodontic treatment and during the first 3 months of the retention phase using a computerized occlusal analysis system (T-Scan, Tekscan Inc., Norwood, MA, USA). Materials and methods A total of 52 patients were included in this prospective cohort study and underwent analysis of occlusal forces on the level of tooth, jaw-half, and -quadrant during a 3-month period. Furthermore, differences between three retention protocols (group I: removable appliances in both jaws; group II: fixed 3–3 lingual retainers in both jaws; group III: removable appliance in the maxilla and fixed 3–3 lingual retainer in mandible) were assessed with Wilcoxon signed-rank tests at 5%. Results Directly after debonding, measured forces distribution were similar to published references for untreated samples. In the following, no significant difference was found between retention protocols II and III with regard to the asymmetry of the anterior occlusal forces. Both groups maintained an asymmetric force distribution in the anterior segment during the study period. There was also no difference between groups II and III in the distribution of occlusal forces for the posterior segments. Both retention concepts kept the symmetrical distribution of occlusal forces stable over the observation period. The retention concept of group I demonstrated a symmetrical distribution of occlusal forces in the anterior segment after debonding and this remained stable during the 3‑month period. In the posterior segment, no improvement of the initially asymmetric masticatory force distribution could be observed. Conclusions All three studied retention protocols showed stability in retaining their original symmetrical or asymmetrical occlusal force distribution posteriorly/anteriorly during the 3‑month observation period. Therefore, an even distribution of occlusal forces should be the aim of the finishing phase, as no relative benefit of any single retention scheme in terms of post-debond improvement during the retention phase was seen.

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Computerized analysis of occlusal contacts after lingual orthodontic treatment in adults

Cited by 15 publications

References 24 publications

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

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

Post-insertion Posterior Single-implant Occlusion Changes at Different Intervals: A T-Scan Computerized Occlusal Analysis

Changes in the distribution of occlusal forces in the course of the orthodontic retention phase

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