ABSTRACT
Er,Cr:YSGG laser is a rising treatment option for dentine hypersensitivity (DH). However, there is no data available concerning the scanning electron microscope (SEM) evaluation of the clinical application of Er,Cr:YSGG laser in the treatment of DH. The aim of this study was to evaluate and compare the desensitising and tubule occlusion effects of Er,Cr:YSGG laser with different power settings. Twenty patients (60 teeth) participated in this study. For each patient, teeth were randomised to 3 groups. In groups 1 and 2, patients were treated with Er,Cr:YSGG laser at 0.25 and 0.5 W, respectively. In control group, same laser was applied without laser emission. DH was assessed for all groups with a visual analogue scale (VAS). When compared with the baseline data and control group, in both active treatment groups laser irradiation provided a desensitising effect immediately after treatment (P < 0.001). In group 2, VAS scores were significantly lower than group 1. The tubule diameters in the both laser groups were significantly smaller than the control group (P < 0.01). When group 1 compared with group 2, group 2 showed significantly smaller tubule diameters (P < 0.001). Both 0.25 and 0.5 W laser irradiation were effective for the treatment of DH; however, 0.5 W laser irradiation showed best results for the decrease in VAS scores. The SEM findings of the reduction in number/patency of dentine tubules seem to be related to the clinical findings, which were associated with improvement in treatment efficacy.
Subject(s)
Dentin Sensitivity/radiotherapy , Lasers, Solid-State/therapeutic use , Low-Level Light Therapy , Microscopy, Electron, Scanning , Adolescent , Adult , Aluminum Oxide , Dentin Sensitivity/physiopathology , Erbium , Female , Humans , Low-Level Light Therapy/methods , Male , Middle Aged , Pain Measurement , Patient Satisfaction , Surface Properties , Treatment Outcome , YttriumABSTRACT
BACKGROUND: The aim of this clinical study was to evaluate and compare the clinical efficacy of subgingival ultrasonic mechanical instrumentation (UMI) irrigated with essential oils (EOs) and chlorhexidine (CHX) at the furcation involvements (FI). METHODS: Forty-five patients (244 FI) who presented with Class II FI were recruited to the study. Patients were randomly assigned to CHX (UMI irrigated with 0.2% CHX), EO (UMI irrigated with EOs) or control (UMI irrigated with distilled water) groups. All treatments were performed in one session. For all groups, plaque index (PI), gingival index (GI), position of gingival margin (PGM), pocket depth (PD), bleeding on probing (BOP), clinical attachment level (CAL) and horizontal attachment level (HAL) scores were recorded at baseline and 1 and 3 months after therapy. RESULTS: In all groups, there were significant reductions in PI, GI, PD and BOP, increase in PGM scores and gain in CAL and HAL scores, at 1 and 3 months compared to baseline. Except in BOP scores, there were no significance differences among the groups at any time point. At 1 and 3 months, there were significant reductions in the BOP scores of the EO group compared with the CHX and control groups. CONCLUSION: Within the limits of this study, the use of EOs as a cooling liquid of UMI may promote slight adjunctive effects at FI compared to CHX and water.
Subject(s)
Anti-Infective Agents, Local/administration & dosage , Chlorhexidine/administration & dosage , Furcation Defects/therapy , Oils, Volatile/administration & dosage , Subgingival Curettage/methods , Adult , Combined Modality Therapy , Cyclohexanols/administration & dosage , Eucalyptol , Female , Humans , Male , Menthol/administration & dosage , Middle Aged , Monoterpenes/administration & dosage , Periodontal Debridement/instrumentation , Periodontal Debridement/methods , Periodontal Index , Single-Blind Method , Statistics, Nonparametric , Subgingival Curettage/instrumentation , Therapeutic Irrigation/methods , Thymol/administration & dosage , Treatment Outcome , UltrasonicsABSTRACT
Leakage from a colonic anastomosis remains a major complication of surgery for colon emergencies and is associated with a significant increase in postoperative hospital stay and mortality rate. The purpose of our study was to investigate whether fibrin sealant, a well known tissue adhesive, will augment healing of bowel anastomosis in an experimental peritonitis model. Forty-eight male Sprague-Dawley rats were randomized into four groups. All rats underwent conventional sutured colo-colic anastomosis. The rats in group 3 and 4 had been exposed peritonitis before that procedure. In groups 2 and 4 fibrin sealant was added to the suture line. The measurements of bursting pressure and histopathological evaluations of suture lines revealed that peritonitis was deleterious to healing of colonic anastomosis. It was also seen that fibrin sealant augments healing of colonic anastomosis both in normal and peritonitis models.