Romanova Julia1 and Koval Svitlana2*
1Department of Therapeutic Dentistry, Odessa National Medical University
2Department of Therapeutic Dentistry, Odessa National Medical University, Private Orthodontic Clinic ‘’SK Dental», Odessa, Ukraine
Received: 05 June, 2017; Accepted: 21 June, 2017; Published: 23 June, 2017
Koval Svitlana, MSc, Orthodontist, Department of Therapeutic Dentistry, Odessa National Medical University, Private Orthodontic Clinic SK Dental, Odessa, Ukraine, Tel: +00380677661463; E-mail:
Romanova J, Koval S (2017) The procedure of Anteroposterior Tooth Contact Adjustment (APTCA) in Orthodontic patients. J Dent Probl Solut 4(3): 044-047.
© 2017 Romanova J, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Richmond crown; Post and core; Over jet; Overbite
Orthodontic relapse is the major concern in both adolescent and adult orthodontic treatment. The causes of orthodontic relapse are reported to be of various origins. Functional diagnostic procedures allow to report the presence of disturbances in temporomandibular joint functioning, chewing muscle functioning and tooth contacts. The T-scan computerized occlusal analysis is aimed to diagnose the presence of tooth contacts that contribute to the overall imbalance in the occlusal pattern, the presence of force outliers which contribute to excessive teeth load and the timing characteristics of the functioning occlusion. The procedure of Anteroposterior tooth contact adjustment (APTCA) was worked out to analyze the presence of factors contributing to the anterior teeth movements after the completion of orthodontic treatment and subsequently to diminish the risk of the orthodontic relapse caused by these tooth contacts.
Orthodontic relapse is the main concern regarding the stability of orthodontic treatment outcome. Various causes were reported in the literature to contribute to orthodontic relapse [1,2]. Different malocclusion types show various prevalence of tendency to relapse [3,4], moreover, different orthodontic treatment techniques can predispose to post treatment tooth movements . Both type of retention appliance and the retention protocol are considered to be the main contributing factors. Both occlusal contacts are targeted during orthodontic relapse examination [6-8] and electromyographic activity of chewing muscles .
Occlusal relationships were reported to cause tooth movements after the completion of orthodontic treatment [10,11] as well as signs and symptoms of temporo-mandibular dysfunction [12,13]. T-scan occlusal analysis (Tekskan, USA) was used to analyze occlusal relationships  and the distribution of forces during functional jaw movements [8,9,15-18]. Detailed time report can be acquired as well as the duration of tooth contacts in different jaw movements and positions with the use of T-scan occlusal analysis. T-scan computerized occlusal analysis is currently the only procedure which can be used to calculate the amount of relative force and the duration of contacts along the dental arches.
We have developed a T-scan based occlusal analysis procedure which can be used to reveal contacts which contribute to orthodontic relapse after the completion of treatment
Computer-guided occlusal adjustment named anteroposterior tooth contact adjustment (APTCA) is an orthodontic alternative to the earlier described technique of Immediate Complete Anterior Guidance Development (ICAGD), first introduced by Kerstein in 1992 . The APTCA technique is aimed to lessen anterior tooth movements caused by contacts on posterior teeth that prolong disclusion time, thus decreasing the risk of orthodontic relapse in the upper anterior region (Figure 1).