Impact of piezocision on orthodontic tooth movement
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Objective: This study investigated the impact of a single piezocision in the maxillary alveolar process on the speed of tooth movement. The null hypothesis was that the speed of tooth movement will be equal with and without piezocision. Methods: All maxillary molars on one side were moved against the combined incisors in 10 ten-week-old male Wistar rats. Under general anesthesia, a force of 25 cN was applied on either side using a Sentalloy closed coil spring. After placing the orthodontic appliance, vertical corticision was performed using a piezotome under local anesthesia, 2 mm mesial from the mesial root of the first molar on a randomly selected side; the other side served as the control. At the beginning of the treatment, and 2 and 4 weeks later, skull micro-computed tomography was performed. After image reconstruction, the distance between the mesial root of the first molar and the incisive canal, and the length of the mesial root of the first maxillary molar were measured. Moreover, the root resorption score was determined as described by Lu et al. Results: Significantly higher speed of tooth movement was observed on the corticision side; thus, the null hypothesis was rejected. The loss of root length and root resorption score were significantly more pronounced after piezocision than before. A strong correlation was observed between the speed of tooth movement and root resorption on the surgical side, but the control side only showed a weak correlation. Conclusions: Piezocision accelerates orthodontic tooth movement and causes increased root resorption.
Abstract
Objective: This study investigated the impact of a single piezocision in the maxillary alveolar process on the speed of tooth movement. The null hypothesis was that the speed of tooth movement will be equal with and without piezocision. Methods: All maxillary molars on one side were moved against the combined incisors in 10 ten-week-old male Wistar rats. Under general anesthesia, a force of 25 cN was applied on either side using a Sentalloy closed coil spring. After placing the orthodontic appliance, vertical corticision was performed using a piezotome under local anesthesia, 2 mm mesial from the mesial root of the first molar on a randomly selected side; the other side served as the control. At the beginning of the treatment, and 2 and 4 weeks later, skull micro-computed tomography was performed. After image reconstruction, the distance between the mesial root of the first molar and the incisive canal, and the length of the mesial root of the first maxillary molar were measured. Moreover, the root resorption score was determined as described by Lu et al. Results: Significantly higher speed of tooth movement was observed on the corticision side; thus, the null hypothesis was rejected. The loss of root length and root resorption score were significantly more pronounced after piezocision than before. A strong correlation was observed between the speed of tooth movement and root resorption on the surgical side, but the control side only showed a weak correlation. Conclusions: Piezocision accelerates orthodontic tooth movement and causes increased root resorption.
참고문헌 (23)
- Liou EJ, "Rapid canine retraction through distraction of the periodontal ligament", Am J Orthod Dentofacial Orthop, 114, pp.372~382 (1998)
- Wilcko W, "Accelerating tooth movement : the case for corticotomy-induced orthodontics", Am J Orthod Dentofacial Orthop, 144, pp.4~12 (2013)
- Frost HM, "The regional acceleratory phenomenon : a review", Henry Ford Hosp Med J, 31, pp.3~9 (1983)
- Wilcko MT, "Accelerated osteogenic orthodontics technique : a 1-stage surgically facilitated rapid orthodontic technique with alveolar augmentation", J Oral Maxillofac Surg, 67, pp.2149~2159 (2009)
- Alikhani M, "Effect of micro-osteoperforations on the rate of tooth movement", Am J Orthod Dentofacial Orthop, 144, pp.639~648 (2013)
- Kim SJ, "Effects of Corticision on paradental remodeling in orthodontic tooth movement", Angle Orthod, 79, pp.284~291 (2009)
- Dibart S, "Piezocision: a minimally invasive, periodontally accelerated orthodontic tooth movement procedure", Compend Contin Educ Dent, 30, pp.342~344 (2009)
- Yi J, "Efficacy of piezocision on accelerating orthodontic tooth movement : a systematic review", Angle Orthod, 87, pp.491~498 (2017)
- Dibart S, "Tissue response during Piezocision-assisted tooth movement : a histological study in rats", Eur J Orthod, 36, pp.457~464 (2014)
- Librizzi Z, "Comparison of the effects of three surgical techniques on the rate of orthodontic tooth movement in a rat model", Angle Orthod, 87, pp.717~724 (2017)
- Kraiwattanapong K, "Effects of different force magnitudes on corticotomy-assisted orthodontic tooth movement in rats", Angle Orthod, 88, pp.632~637 (2018)
- Peron AP, "Tissue responses resulting from tooth movement surgically assisted by corticotomy and corticision in rats", Angle Orthod, 87, pp.118~124 (2017)
- Patterson BM, "Effect of piezocision on root resorption associated with orthodontic force : a microcomputed tomography study", Am J Orthod Dentofacial Orthop, 151, pp.53~62 (2017)
- Präger TM, "Microdamage in the alveolar process of rat maxillae after orthodontic tooth movement", J Orofac Orthop, 76, pp.41~50 (2015)
- Ulgen M, "The influence of the masticatory hypofunction on the craniofacial growth and development in rats", Am J Orthod Dentofacial Orthop, 111, pp.189~198 (1997)
- Lu LH, "Histological and histochemical quantification of root resorption incident to the application of intrusive force to rat molars", Eur J Orthod, 21, pp.57~63 (1999)
- Dahlberg G., "Statistical methods for medical and biological students", pp.122~132 (1940), Allen & Unwin Ltd
- Björk A, "The use of metallic implants in the study of facial growth in children : method and application", Am J Phys Anthropol, 29, pp.243~254 (1968)
- Dutra EH, "The effects of alveolar decortications on orthodontic tooth movement and bone remodelling in rats", Eur J Orthod, 40, pp.423~429 (2018)
- Burstone CJ, "Vistas in orthodontics", pp.197~213 (1962), Lea & Febiger
- Linge L, "Patient characteristics and treatment variables associated with apical root resorption during orthodontic treatment", Am J Orthod Dentofacial Orthop, 99, pp.35~43 (1991)
- Kurol J, "Time-related root resorption after application of a controlled continuous orthodontic force", Am J Orthod Dentofacial Orthop, 110, pp.303~310 (1996)
- Iino S, "Acceleration of orthodontic tooth movement by alveolar corticotomy in the dog", Am J Orthod Dentofacial Orthop, 131, pp.448~ (2007)