Petrescu Stelian-Mihai-Sever, Țuculină Mihaela Jana, Osiac Eugen, Camen Adrian, Sălan Alex Ioan, Mărășescu Felicia Ileana, Nicola Andreea Gabriela, Bechir Edwin Sever, Dascălu Ionela Teodora
Faculty of Dentistry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania.
Faculty of Dentistry, University of Medicine and Pharmacy of Târgu Mureș, 540142 Târgu Mureș, Romania.
Exp Ther Med. 2021 Dec;22(6):1424. doi: 10.3892/etm.2021.10859. Epub 2021 Oct 11.
Optical coherence tomography (OCT) is a modern imaging method with applicability in orthodontics. In recent years, there has been an increasing trend in the use of ceramic brackets. The aim of the present study was to investigate the effects of bonding metallic and ceramic brackets on tooth enamel, using optical coherence tomography. For this purpose, 20 permanent teeth we bonded and were subsequently debonded using a side cutter or anterior bracket removal pliers. Using the OCT technique, the enamel, the amount of adhesive remaining and the bracket fragments remaining on the tooth surface were analyzed following the debonding procedure. It was demonstrated that enamel cracks were present only in the samples bonded with ceramic brackets. At the same time, it was noted that the type of pliers did not affect the incidence and extent of damage to the enamel. The type of debonding technique (using the side cutter or the anterior removal pliers) used did not markedly affect the amount of adhesive remaining on the teeth. Thus, as demonstrated herein, by analyzing the enamel structure through the use of OCT, the quality of the processes and the materials used for manufacturing brackets can be increased.
光学相干断层扫描（OCT）是一种在正畸学中有应用价值的现代成像方法。近年来，陶瓷托槽的使用呈上升趋势。本研究的目的是利用光学相干断层扫描研究粘结金属托槽和陶瓷托槽对牙釉质的影响。为此，选取20颗恒牙进行粘结，随后使用侧切刀或前牙托槽拆除钳进行拆除。在拆除操作后，利用OCT技术对牙釉质、残留在牙齿表面的粘结剂以及托槽碎片进行分析。结果表明，牙釉质裂纹仅出现在粘结陶瓷托槽的样本中。同时，注意到钳子的类型并不影响牙釉质损伤的发生率和程度。所采用的拆除技术类型（使用侧切刀或前牙拆除钳）对残留在牙齿上的粘结剂数量没有显著影响。因此，如本文所示，通过使用OCT分析牙釉质结构，可以提高制造托槽所使用工艺和材料的质量。
