Background: The advantage of laser use in medicine has been exciting and remarkable since its introduction in the 1960s. Several medical specialties use lasers in their daily practice; the excitement of this new technology has also reached dentistry, where over the past few years, the industry has developed lasers for intraoral use and has marketed them heavily, often relying on anecdotal evidence to support their claims of superior results with the use of lasers over conventional surgical treatment. Aim of Study: The study aimed to survey the attitude of dentists about laser and its interactions with tissue giving a near vision on the future of laser devices and its market in Egypt. Materials and Methods: A study carried on 15 dentists and they asked to answer a questionnaire of 22 questions about laser. Results: Regarding the question asked about knowing the dentists who have laser devices at their clinics in Egypt, all answered that they know 1–5 dentists only. Conclusion: Dentists have no enough motivation as they think that laser device in comparison with its limited uses in dental clinic is expensive and also spare parts are hard to gain or not available.

Aim of the study: To evaluate the effect of low-level laser therapy, as an adjunct to non-surgical periodontal treatment, on periodontal clinical and biochemical parameter i.e CRP. Materials and Methods: The study was designed as a randomized, controlled, single-blind, split-mouth clinical trial. Systemically healthy persons diagnosed with chronic periodontitis and presence of at least two bilateral maxillary premolars with ≥5-mm periodontal pocket depth were included in the study. The PPD, CAL,MGİ and SBI were measured at the baseline and at 1 and 3 months after periodontal treatment. Gingival crevicular fluid samples were taken at the baseline , 1 month and 3 months after treatment. The LLLT application was made in four sessions: after periodontal treatment, on the third day, and on the seventh day post-treatment. LLLT was applied in non-contact mode and tip tissue distance was approximately 1cm on every tooth on the test side for 15 s in the continuous mode, at 0.5 W and with an application tip 1 cm in diameter. Results: Intra group comparison for both the groups showed significant difference from baseline to one month for MGI and SBI and PD showed significant difference only in the test group , whereas from baseline to three months all the parameters showed statistically significant difference. Intergroup comparison between the groups showed statistically significant differences between MGI, SBI and CRP levels. Conclusion: Within the limitations of this study, LLLT in addition to non surgical periodontal treatment, has positive impact.

Background and Aim: This study evaluated and compared the immediate and 2-month desensitizing efficacy of Gluma Desensitizer, Seal and Protect sealant, fluoride varnish, and erbium, chromium: yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser in reducing cervical dentin hypersensitivity (DH). Materials and Methods: Sixty patients each with at least one hypersensitive premolar were selected and randomly assigned to four groups: Gluma Desensitizer, Seal and Protect sealant, Duraphat fluoride varnish, and Er,Cr:YSGG laser. The assessment method used to quantify sensitivity was the cold air syringe, and the sensitivity was recorded by the visual analog scale (VAS), before treatment (baseline), immediately after treatment, and after 1, 2, 3, and 8 weeks. Results: The study results showed that there was a significant reduction in sensitivity at the various time intervals with all the four desensitizing agents – glutaraldehyde in methacrylate resin (Gluma Desensitizer), nanofilled methacrylate resin (Seal and Protect), sodium fluoride varnish (Duraphat), and Er,Cr:YSGG laser therapy. Conclusion: It can be concluded that after 8 weeks of clinical evaluation, all therapies showed lower VAS sensitivity values compared with baseline, independently of their different modes of action. The study indicates that Er,Cr:YSGG laser can emerge as an efficient treatment alternative in the reduction of DH.

Background: The aim of this study was to estimate the random blood sugar (RBS) level from gingival crevicular blood (GCB) and finger-prick blood and to evaluate the effectiveness of scaling and root planing (SRP) with the adjunctive use of diode laser (DL) and antibiotics in chronic periodontitis (CP) patients with diabetes. Materials and Methods: A total of 60 patients were included in the study and divided into three groups, 20 in each group. SRP, SRP with adjunctive use of antibiotic, and SRP with adjunctive use of DL were done in patients belonging to Groups A, B, and C, respectively. Results: The RBS values were significant in all the three groups at baseline, 1 month, and 3 months. GCB values were significant only in Group B and Group C at baseline, 1 month, and 3 months. Data obtained from all three groups have revealed a strong correlation in the posttreatment reduction of glucose levels in GCB and blood sample obtained using finger-prick method. Conclusions: The results show that DL treatment can provide better clinical results when used as an adjunct to nonsurgical periodontal treatment in CP patients with diabetes. Moreover, less invasive technique to measure patient's blood glucose level aids the periodontist to better assess the glycemic control which, in turn, contributes to the success of periodontal therapy. On the basis of the results of this study, GCB is a useful aid for testing blood glucose during routine periodontal therapy.

Aim: The aim of this study is to determine the effectiveness of the irrigation techniques including Vibringe Sonic Irrigation, passive ultrasonic irrigation (PUI), photon-induced photoacoustic streaming (PIPS), and conventional needle irrigation (CNI) used to remove the calcium hydroxide (CH) from the artificial groove. Subjects and Methods: Ninety-four teeth extracted human mandibular premolars having single root and linear canal were instrumented with ProTaper system up to size 50. As a standard groove model was designed in the apex of the root's half part. The samples were divided into four experimental groups (n = 21). The techniques were applied for experimental groups as Vibringe (Group 1), PUI (Group 2), PIPS (Group 3), and CNI (Group 4). The residual amount of CH was measured with a stereomicroscope at × 15 magnification by scoring system. The obtained data were statistically analyzed by Kruskal–Wallis and Mann–Whitney U-tests (P < 0.001). Results: CH residues in Group 3 (PIPS) and Group 2 (PUI) were statistically significantly lower than those in Group 1 (Vibringe) and Group 4 (CNI) (P < 0.001). There was no statistically significant difference either between PIPS and PUI groups (P > 0.001) or between Vibringe and CNI groups (P > 0.001). Conclusions: PUI and PIPS techniques could remove but not clean up CH residues from the artificial grooves. In addition, the sonic irrigation technique through the Vibringe device was similar to CNI method in the effectiveness of removal of CH in root canal apices.