CO2 laser surface treatment of failed dental implants for re-implantation: an animal study

Abstract

The aim of the present study was to evaluate the success rate of failed implants re-implanted after surface treatment with CO2 laser. Despite the widespread use of dental implants, there are many incidents of failures. It is believed that lasers can be applied to decontaminate the implant surface without damaging the implant. Ten dental implants that had failed for various reasons other than fracture or surface abrasion were subjected to CO2 laser surface treatment and randomly placed in the maxillae of dogs. Three failed implants were also placed as the negative controls after irrigation with saline solution without laser surface treatment. The stability of the implants was evaluated by the use of the Periotest values (PTVs) on the first day after surgery and at 1, 3, and 6 months post-operatively. The mean PTVs of treated implants increased at the first month interval, indicating a decrease in implant stability due to inflammation followed by healing of the tissue. At 3 and 6 months, the mean PTVs decreased compared to the 1-month interval (P < 0.05), indicating improved implant stability. The mean PTVs increased in the negative control group compared to baseline (P < 0.05). Independent t-test showed that the mean PTVs of treated implants were significantly lower than control group at 3 and 6 months after implant placement (P < 0.05). Based on the PTVs, re-implantation of failed implants in Jack Russell Terrier dogs after CO2 laser surface debridement is associated with a high success rate in terms of implant stability.

Evaluation of attachment of osteoblast-like cells based on morphology at the fixture surface of dental implants

“…The present study was an experimental and laboratory type of study. Considering the significance level of 5% and the test power of 80% and according to the results of previous studies (10) and the standard deviation S = 0.01 and to achieve a difference of 10% in the mean attachment in each group, 12 samples are required.…”

“…Since 100 mj / pulse power is probably more efficient in removing microbial plaque, Er-YAG laser 100 mj / pulse irradiation is recommended for treating peri-implantitis. However, 60 mj / pulse irradiation had no adverse effect on the biocompatibility of the implant (10). Listl et al (2015) attempted to evaluate the cost-effectiveness of various nonsurgical methods in treating peri-implantitis.…”

Effect of different Surface Treatments of Orthodontic Mini-Implants on their Primary Stability; An in-vitro study

“…OMIs Surface modification have to be more recommended for improving their stability and the compensation for lack of other factors through increasing bone to mini-implants contact (BIC) and removal torque values (RTv). OMIs surface treatments required several techniques included sandblasting, acid-etching, anodization and laser surface treatment techniques (6)(7)(8)(9)(10) . This study o Ahmed Safwat Mohamed (1) , Noha El-Wassefy (2) , Marwa Ali Tawfik (3) , Mona Abdelaziz Montasser (4) Ahmed Safwat Mohamed examined the effects of SLAO surface treatment versus CO 2 laser surface treatment of OMIs.…”