ABSTRACT
Introduction: periosteal releasing incision [PRI] is nearly always essential to advance the flap sufficiently for a tension-free flap closure in bone augmentation procedures. However, hematoma, swelling, and pain are recognized as the main consequences of PRI with scalpel. The aim of this case series was to investigate the effectiveness of laser-assisted PRI in guided bone regeneration [GBR] procedure. In addition, postoperative hematoma, swelling, and pain and implant success were assessed
Methods: seventeen patients needed GBR were included in this study. Diode laser [940 nm, 2 W, pulse interval: 1 ms, pulse length: 1 ms, contact mode, 400-micro m fiber tip] was used in a contact mode to cut the periosteum to create a tension-free flap. Facial hematoma, swelling, pain, and the number of consumed nonsteroidal anti-inflammatory drugs [NSAIDs] were measured for the six postoperative days. Six months after implant loading, implant success was evaluated
Results: minimal bleeding was encountered during the procedure. A tension-free primary closure of the flap was achieved in all cases. The clinical healing of the surgical area was uneventful. None of the patients experienced hematoma, ecchymosis, or intense swelling after surgery. The mean value of maximum pain [visual analogue scale - VAS] was 20.59 +/- 12.10 mm [mild pain]. Patients did not need to use NSAID after four postoperative days. All implants were successful and functional and none of them failed after 6 months of implant loading
Conclusion: this study revealed the effectiveness of laser-assisted PRI in GBR procedure. This technique was accompanied with minimal sequelae at the first postoperative week. All implants were successful and no complication was noted during the course of this study
ABSTRACT
OBJECTIVES: This study aimed to assess and compare the levels of interleukin-1beta (IL-1beta) and interleukin-6 (IL-6) in the crevicular fluid around healthy implants, implants with peri-implantitis, and healthy teeth. MATERIALS AND METHODS: This study evaluated 16 dental implants in 8 patients (4 males and 4 females). These patients had at least one healthy implant and one implant with peri-implantitis next to healthy teeth. The crevicular fluid was collected using absorbent cones and transferred to the laboratory. Specimens were evaluated by ELISA for interleukin levels. Data were analyzed using repeated measures ANOVA and Bonferroni tests (P<0.05). RESULTS: Levels of IL-1beta in the crevicular fluid around implants with peri-implantitis were significantly higher than around healthy implants (P=0.002); the latter was significantly higher than around healthy teeth (P=0.015). A significant difference was found in the level of IL-6 in the crevicular fluid around implants with peri-implantitis and healthy implants (P=0.049) and also between implants with peri-implantitis and healthy teeth (P<0.001). CONCLUSION: Within the limitations of this study, significant differences exist in the levels of IL-1beta and IL-6 in the crevicular fluid of implants with peri-implantitis, healthy implants, and healthy teeth. More studies with larger sample sizes in different populations are necessary.