Evaluation of Alveolar Bone Preservation After Molar Extraction Using Photobiomodulation Combined With Grafting With Scaffold Biomaterial: Clinical, Randomized, Triple-blind Study.
试验速览
- 阶段
- 1 期
- 状态
- 已完成
- 入组人数
- 60
- 试验地点
- 2
- 主要终点
- Surgical intervention phase
研究概览
简要总结
Bone graft added to the dental socket immediately after tooth extraction prevents atrophy and deformity of the bone at the site of element loss, enabling rehabilitation with implants. Photobiomodulation accelerates bone healing; stimulates blood flow; activates osteoblasts, decreases osteoclastic activity, and improves the integration of the biomaterial with bone tissue. The study aims to develop a protocol for the management and preservation of alveolar bone after the loss of first and/or second permanent molars in patients aged between 8 and 17 years, with an indication for extraction associated or not with 808 nm infrared laser treatment. . Materials and methods: 60 patients aged between 8 and 17 years will be randomized and randomly divided into 4 groups, n= 15: Exo (extraction), Exo+Laser (extraction and laser treatment), Exo+Biomat (extraction with graft biomaterial), Exo+Biomat+Laser (biomaterial extraction and grafting and laser treatment). The biomaterials of choice will be Plenum® OSShp and Plenum® Guide (Brazil), added to the alveolus immediately after molar extraction, groups that will receive the laser (λ = 808 nm, power = 100 mW, radiant energy 3J per point in 3 buccal, occlusal and lingual/palatal points), will receive the irradiation in the surgical act, 48 hours and 10 days after the surgery, in the Exo and Exo+Biomat groups a similar laser device without emission of irradiation will be used, the operator who will apply the laser and the patient will be blind to the device used and the patient will not know whether or not he received the biomaterial. Analysis: computed tomography and intraoral scanning were performed pre-surgery, 3 and 6 months after surgery; to assess bone volume by measuring the height and width of the socket in each group, as well as trabecular bone and the interdental space of the teeth lateral to the missing element. Statistical analysis will be performed using the Shapiro-Wilks test, Student's t-test, or Wilcoxon-Mann-Whitney test for parametric and non-parametric data, respectively, they will be two-tailed and the significance level adopted will be α = 0.05.
详细描述
Clinical, randomized, triple-blind, triple-blind study (the patient will not know whether or not he has received the laser treatment or grafted with the biomaterial, and the operator who will apply the laser will also be blinded to the device with or without laser irradiation.
60 participants will be recruited to attend the dentistry clinic of Universidade Nove de Julho, in the courses of surgery, endodontics, and pediatric dentistry, as well as in a private office, with an indication for the removal of first and second upper and lower molars. This recruitment will only take place after approval by the ethics committee.
4.3 Sample size: The sample size was determined based on the primary outcome of the study: alveolar preservation with scaffold biomaterial. Based on data from Rosero et al. (Photobiomodulation as adjuvant therapy for alveolar preservation: a preliminary study in humans) and Araújo et al. (Ridge changes after engraftment of fresh extraction sockets in man. A randomized clinical trial) Our initial sample size estimate was 9 subjects per group for a significant level of 0.05 and an estimated test power of 80% for references 104 and 105. To account for the possible non-parametric distribution of the data, 15% more subjects should be added to each group. Another 25% will be added to account for possible dropouts, resulting in 13 participants per group and for greater safety and reliability, 15 patients were established in each group. G*Power 3.1.9.6 was used to perform the calculations.
Materials used in the study:
The biomaterial chosen for this research is the Plenum® OSShp and Plenum® Guide (Brazil) allograft. They are completely synthetic bone grafts and resorbable regenerating membranes (free of animal and human origin).
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 8 Years 至 17 Years（Child）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •All genders, aged between 8 and 17 years, without comorbidities, present satisfactory oral hygiene and present a condition of loss of first or second permanent molars
排除标准
- •Habitual use of analgesic and anti-inflammatory medication for other comorbidities, present allergies to the proposed drug protocol, in neurological/psychiatric treatment, presence of teeth with lesions to be treated in the same hemiarch of the tooth to be removed, current smoking habit, pregnant or breast-feeding, presenting photosensitivity disorders, with the presence of neoplasia in the oral region; and patients with operative complications whose surgical time exceeds 90 minutes
结局指标
主要结局
Surgical intervention phase
时间窗: Baseline, pre surgical, 3 and 6 months
The computed tomography examination will be carried out pre-surgery, with the tooth before extraction and after 3 and 6 months after surgery and the measurements chosen for the dimensional measurement of the alveolar process will refer to the buccolingual thickness of the alveolus. In the orthoradial cut, the limits of the alveolus will be delimited based on the tooth apex to the maximum height of the bone crests. In the most central position, the vertical measurement will be taken and 3 buccolingual cuts will be made, proportional to each other according to the measured vertical measurement; and in each apical, middle and cervical third, measurements will be taken regarding the horizontal dimensions of the alveolus. In the intraoral scanning examination, the mesio-distal measurements will be measured from the mesial bone crest to the distal bone crest, and the buccal-lingual measurements in the most central portion of the dental socket.
次要结局
- Interdental distance(Baseline, pre surgical, 3 and 6 months)
研究者
Sandra Kalil Bussadori
PHD
University of Nove de Julho