Measuring Change in First Occlusal Contacts from AM to PM with a Digital Occlusion Analyzer: A Pilot Study (original) (raw)
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The association between Occlusion Time and Temporomandibular Disorders
Journal of Electromyography and Kinesiology, 2015
Introduction: Recently, some published studies show there is a multifactorial origin for Temporomandibular Disorders, but the dental occlusion's contribution to the development of Temporomandibular Disorders, and how it may influence the adaptive capacity of the Stomatognathic system, it's still unclear. The aim of this study is to evaluate the correlation between the Occlusion Time and Temporomandibular Disorders. Methods: A total of 54 patients were enrolled in the study (24 males and 30 females, mean age 27.94 ± 8.21 years). The TMD group (8 males and 10 females) consisted of subjects who presented with at least 1 of the following signs of Temporomandibular Disorders: Temporomandibular Joint sounds (clicking or crepitation), Temporomandibular Joint locking episodes, limited mandibular opening, painful limitation of mandibular movements, pain to palpation of the Temporomandibular Joint or of the masticatory muscles. The control group (16 males and 20 females) presented as free from Temporomandibular Disorders. The T-Scan III computerized occlusal analysis system was to record the subjects' Occlusion. Times during eight mandibular opening-closing movements. Results: The two-ways ANOVA test analyzed the variations for group and sex, showing that the TMD group mean Occlusion Time (0.64 ± 0.21 s) was statistically significantly longer than the control group mean Occlusion Time (0.45 ± 0.17 s) (p < 0.001). Significant differences were also found for gender where the mean OT of female subjects was longer than males one with statistical significance (p-value < 0.01). Conclusions: The computerized analysis of the Occlusion Time in patients affected by TMJ problems has to be carefully considered as adjunctive instrumental device.
Occlusion Timeline Analyses with T-Scan III System in Subjects with Neutroocclusion
2017
Occlusion evaluation based only upon static parameters in such a dynamic masticatory system is unsufficient. Therefore, timeline analysis with T-Scan III System is important in diagnose, therapy plan in all phases of orthodontic treatment in every day clinical practice. The aim of this study is to analyse the occlusal force and occlusal contacts distribution over the course of time with the T-Scan III System precise analysis in subjects with neutroocclusion. We included 30 subjects with neutroocclusion, Angle Class I, at the age of 16-29 years, desribing the time and force moment statistics of occlusal contacts in the sagittal and transverse axes of the occlusal plane. We analysed the bite in every 0,15 seconds from the first registred antagonistic tooth contact at inicial time t1 until terminal time t10. At time t1, 40% from the subjects with neutroocclusion occluded first in the anterior region. At time t10, subjects had dominant occlusal contacts in the premolar and molar region ...
Comparative occlusal study analog and digital – a pilot study
Romanian Journal of Stomatology, 2021
The aim of this study was to determine whether or not the analysis of maximal intercuspation, protrusive and laterotrusive movements requires an additional digital method of occlusal diagnosis using the T-Scan™ Novus™ device (TekScan). In this observational study, we retrospectively examined a number of 10 subjects which were divided into 2 groups: the 1st group involved patients with intact dental arches and the 2nd group with patients that had received implant-supported restorations. The methods of analysis involved the calibrated articulating paper of 200 and 40 micrometers, and also the T-Scan™ Novus™ device (TekScan). The following data were collected: contact points in maximum intercuspation (functional and premature contacts), the pairs of teeth performing protrusion and right/left laterotrusion, active/passive interferences and premature contacts during protrusion and right/left laterotrusion. Descriptive statistics were obtained using the MedCalc Statistical Software versio...
T Scan – An aid in achieving stable occlusion during finishing stages of orthodontic treatment
international journal of stomatology & occlusion medicine, 2016
Background Superficial clinical examination of occlusion and just assessing the morphologic relationship of teeth at the finishing stages of orthodontic treatment may be insufficient. A case with a clinically satisfying occlusion may be functionally unbalanced. Evaluating occlusion both statically and functionally for uniform distribution of occlusal load is essential for optimum results and therefore, it is imperative to evaluate the occlusal contacts in the vertical plane. Aims The aim of the study was to quantitatively assess the occlusion at the pre finishing stage of orthodontic treatment using T Scan in order to identify the various occlusal variabilities and compare it to the occlusion achieved after 1 month of completion of orthodontic treatment. Methods Quantitative occlusal analysis using T Scan was performed on 16 adult patients at the start of finishing stage (T1) followed by a detailed finishing and settling phase of 2 months. Another scan was taken 1 month after debonding (T2). Results Using Wilcoxon matched pair test, statistically significant changes were seen in mandibular position and occlusal contacts at T2 as compared to T1. Relatively equal distribution of forces on both sides of the arch was also achieved after a detailed finishing and settling phase. Conclusions Evaluation of the number and distribution of occlusal contacts at the end of active orthodontic treatment has not been a routine procedure in orthodontic clinics. 2 months of extensive finishing and detailing phase resulted in marked improvement in all three parameters and favorable changes in occlusion. Hence, evaluation of occlusion using T Scan is an innovative and objective method, emphasizing that proper finishing is mandatory for obtaining functionally stable occlusion.
Advances in Medical Technologies and Clinical Practice, 2020
The traditional occlusal indicators used in dental practice are articulation papers, Shim-stock foils, elastomeric impression materials, and occlusal wax strips. These static dental materials have been widely believed to have occlusal force descriptive capability. However, modern material studies are challenging the widespread belief that occlusal indicator materials can measure differing occlusal force levels. This chapter evaluates the force reporting limitations of these static occlusal indicators, and discusses how clinicians subjectively interpret their appearance characteristics to determine differing occlusal force levels. This chapter then compares these non-digital occlusal indicators to the T-Scan computerized occlusal analysis technology, that records and displays precise, quantifiable, relative occlusal force variances, and occlusal contact timing sequences. This digital data aids the clinician in making a more accurate occlusal analysis, and can guide the clinician in t...
Egyptian Dental Journal, 2018
Background: Occlusal balance in complete dentures is usually achieved by eliminating occlusal discrepancies through selective grinding. The main challenge lies in the accurate detection of the premature contacts to be able to achieve true and proper occlusal balance. There are several ways to detect occlusal errors and premature contacts including the intra-oral clinical assessment methods and remounting procedures. Purpose: Dental literature lacks studies that objectively investigated the accuracy of occlusal adjustment after clinical remounting procedures as compared with that done only by intra-oral assessment using articulating paper. The aim of this study was to quantitatively and objectively assess the influence of clinical remounting on occlusion (OT) and disocclusion (DT) times, as objective indicators of occlusal balance, using computerized occlusal analysis. Methods: This clinical study included 20 completely edentulous patients, 11 males and 9 females (aged 51 to 64, with an average of 57.6 years). Two sets of conventional complete dentures were constructed for each patient with a total of 40 dentures. Occlusal adjustment of 20 denture sets was done based on intra-oral assessment using articulating paper (control group) while occlusal adjustment of the other 20 denture sets was done based on clinical remounting procedures (experimental group). Occlusal parameters including OT, DT during right excursion (DT-Right) and DT during left excursion (DT-Left) were recorded for each set of dentures. Paired t-test was used to statistically analyze and compare the OT, DT-Right and DT-Left values between the two denture groups. A probability value of less than 0.05 was considered statistically significant. Results: The mean recorded OT was 0.48 seconds in the intra-oral method (articulating paper) group and decreased to 0.32 seconds in the clinical remounting group. This decrease was statistically significant. The mean recorded DT was 0.6 and 0.62 seconds for DT-Right and DT-Left respectively in the intra-oral method group. However they decreased to 0.36 and 0.37 seconds in the clinical remounting group. Again this decrease was statistically significant for both right and left lateral excursions. Conclusion: Occlusal adjustment based on clinical remounting procedures is more accurate and achieves more occlusal balance, as represented by shorter occlusion and disocclusion times, when compared to the intra-oral adjustment method using an articulating paper.
Objective: This literature review summarizes the properties, advantages, limitations, and clinical implications of employing static occlusal indicators compared to quantifi-able digital occlusal indicators during occlusal adjustments. Method: An electronic database search of dental literature was carried out in PubMed/MEDLINE using the key words Occlusal Indicators, Occlusal Assessment, Static, Reliability, Dynamic, Repeata-bility, Validity and Clinical Accuracy. A total of 231 papers were isolated, with 129 papers considered for review. Results: The included papers were grouped by Static and Dynamic Occlusal indicators. The numbers of papers in the Static Group was extremely low (only 20 papers) compared to The Dynamic group (T-Scan: 89; Dental Prescale: 28; Intraoral Scanners:17). Conclusion: Little evidence supports the use of static occlusal indicators due to their high degree of subjectivity required during implementation. However, much scientific evidence supports the use of T-Scan, as it measures relative occlusal forces and timing objectively, accurately, and repeatedly. For the improvement of Occlusal Practice, Subjective Interpretation using Static occlusal indicators should be replaced with digital ones for objective measurements. Clinical Relevance: The computerized occlusal analysis system is well studied and has the capacity to provide precise time and force sequencing information to objectively evaluate occlusal contacts for improved treatment outcome.