Efficiency of Er:YAG utilization in accelerating deep bite orthodontic treatment

Abstract

Background and aims: The long duration of orthodontic treatment is a major patients' concern. A noninvasive method of accelerating tooth movement in a physiological manner is needed. The aim of the study was to evaluate the effects of Er:YAG laser application during orthodontic treatment of deep bite and to evaluate its analgesic effect during that movement. Materials and methods: A prospective randomized controlled clinical trial (RCT) was performed on 30 patients with deep bite. Sample was divided into two groups: (A), 15 patients (orthodontic treatment-control group) and (B), 15 patients (orthodontic treatment and Er:YAG Laser-laser group). The tooth movement was evaluated as the primary outcome variable by measuring angular and linear changes on three progress lateral cephalometeric radiographs (T1, T2 and T3); Lateral cephalograms were taken before treatment (T1), immediately after finishing the stage of leveling and alignment (T2) and after completion of the intrusion stage (T3). Laser parameters were 400 mJ/10 Hz/4 W and 400 mJ/15 Hz/6 W, depending on the handpiece used. The levels of pain and discomfort were evaluated and ranked according to a visual analog scale. Paired t-tests or Wilcoxon matched-pairs signed-rank tests were used to detect significant differences. Results: The main findings of the treatment were (1) significant positive difference in the rates of tooth intrusion movement on the experimental group compared with the control group at the baseline to T2 and T3 interval and the tooth movement rate was approximately 3 times faster in the experimental group. (2) The pain score in the experimental group was significantly lower compared with the control group on day 3 as on day 7. Conclusions: The application of Er:YAG laser is an effective mean to speed orthodontic tooth movement with a significant reduction in pain and discomfort after application.

Systematic Review: Is High-Energy Laser Therapy (HELT) With Flapless Corticotomy Effective in Accelerating Orthodontic Tooth Movement?

“…No studies were excluded. Finally, six studies were included in the systematic review [ 13 , 16 , 18 , 23 - 25 ]. Figure 1 shows the Preferred Reporting Items for Systematic Reviews (PRISMA) flow diagram.…”

“…However, the designs of these studies were not similar. One RCT was a parallel-group design with a control group of non-accelerated tooth movement [ 18 ], two RCTs were compound trials (two-arm parallel-group design with a split-mouth design for each arm [ 13 , 23 ], and the last two RCTs had a split-mouth design [ 24 - 25 ]. In addition, the only CCT in this systematic review also had a split-mouth design [ 16 ].…”

“…All of the studies included males and females without any gender preference. Patient ages ranged between 16.9±2.5 and 21.7 years, noting that the study of Al-Jundi et al did not mention the mean age of its patients [ 18 ].…”

“…This causes transient demineralization and increases the activity of cells that accelerate tooth movement [ 17 ]. Therefore, it is considered one of the minimally invasive surgical methods of acceleration [ 13 ], whereas the low-level laser therapy (LLLT), which is considered one of the physical methods of acceleration, has been shown to affect bone remodeling by stimulating osteoclast, osteoblast, and fibroblast propagation, thereby accelerating orthodontic tooth movement [ 18 ].…”

O uso do laser Er:YAG na Odontologia: revisão integrativa

“…Autores como Grzech-Leśniak, Kinga et al (2018), em estudo sobre as técnicas de Desbridamento de bolsos, bem O presente estudo se trata de uma Revisão Integrativa, na qual foram analisados estudos relevantes a respeito do uso do laser Er:YAG na Odontologia fazendo uma síntese dos conhecimentos relacionados a esse assunto, indicando os principais benefícios, limitações, relevância e impacto para a odontologia e saúde bucal do paciente. Estes estudo se torna relevante, devido à seleção criteriosa de 18 artigos obtidos por meio de pesquisas eletrônicas com os descritores "Dentistry" "Laser…”