The results indicate that PDT can be used as an adjuvant therapy to surgery for decontamination of implant surface and surrounding peri-implant tissues within the treatment of peri-implantitis.

Objective: To assess the clinical efficacy and esthetic outcome of porcine-derived dermal collagen matrix in comparison with connective tissue graft in the treatment of multiple adjacent gingival recessions (MAGR), 6 and 12 months after the surgery. Materials and methods: Twenty patients with bilateral type I MAGR were treated randomly with porcine-derived dermal collagen matrix (test site) or connective tissue graft (control site) in combination with a modified coronally advanced tunnel technique. The primary objectives were to evaluate the mean and complete root coverage. The secondary objectives were to assess keratinized tissue width, gingival thickness gain, and root coverage esthetic score. Results: Six and 12 months postoperatively, both groups achieved significant improvements in all clinical parameters compared to baseline, with no statistically significant differences between the groups. Mean root coverage change (Δ12m − 6 m) was statistically significant between the groups in favor of connective tissue graft, and twice as many patients exhibited a complete coverage of all recessions in the control group than the test group. Conclusion: The porcine-derived dermal collagen matrix combined with a modified coronally advanced tunnel technique resulted in satisfactory clinical and esthetic outcomes, which were similar to connective tissue graft. Clinical significance: Porcine-derived dermal collagen matrix (XDM) may be proposed as a substitute for connective tissue graft in multiple adjacent recession treatment due to successful root coverage, a significant increase of gingival thickness, and high esthetic outcomes. The clinical benefits for the use of XDM could be: (a) second surgical wound avoidance, (b) patient discomfort decrease, and (c) lower complications' rate.

Different titanium implant surfaces are prone to microbial colonization and dental plaque accumulation contributing to peri-implantitis pathogens adherence and growth. In conjunction with systemic, local, and implant-based factors such as micro- and macro-designs, implant location, and region, these pathogens can cause a complex inflammatory response resulting in peri-implantitis and deleterious bone loss. Implant surface decontamination plays a crucial and important step in peri-implantitis therapy. The primary goal of implant surface decontamination is to eradicate bacteria and their products outside of implant pits and grooves reducing inflammation and promoting tissue regeneration and/or reparation. Various implant surface decontamination methods such as mechanical, chemical or physical methods have been proposed to prevent bacterial resistance development or/and surface damage. The chapter aimed to assess if implant microdesign could influence the decontamination method choice.

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SUMMARYLasers have found important role in clinical application, science and scientific research. The aim of this review is to focus on using soft tissue laser in endodontic treatments.The main goal of endodontic treatment is elimination of pathogenic microorganisms from root canal system. Laser light has the ability to reach parts of the tissue and areas where classical techniques and instruments cannot. New approaches to disinfecting root canals have been proposed recently, which include the use of high-power diode lasers, as well as disinfection of the root canal by using photodynamic therapy. A research is necessary to define a precise protocol for high-power laser and photodynamic therapy in treatment of the root canal system.

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Background: The present pilot study aimed to assess clinical and radiographic efficiencies of bovine bone substitute (BBS) merged with hyaluronic acid (HA) in peri-implantits reconstructive surgery. Methods: Peri-implantitis (diagnosed 6.03 ± 1.61 years of implant loading) bone defects were randomly treated either with BBS plus HA (test group) or BBS alone (control group). Clinical parameters including peri-implant probing depth (PPD), bleeding on probing (BOP), implant stability (ISQ), and radiographic changes in vertical and horizontal marginal bone (MB) levels were assessed at six months postoperatively. New temporary and permanent screw-retained crowns were made at two weeks and three months postoperatively. Data were analyzed using parametric and non-parametric tests. Results: In both groups, 75% of patients and 83% of implants achieved treatment success after six months (no BOP, PPD <5 mm, and no further MB loss). Clinical outcomes improved over time within groups; however, without significant difference between them. ISQ value obtained significant increases in the test compared to the control group at six months postoperatively (p < 0.05). The vertical MB gain was significantly greater in the test group compared to the control (p < 0.05). Conclusions: Short-term outcomes suggested that BBS merged with HA could improve clinical and radiographic outcomes in peri-implantitis reconstructive therapy.

Introduction/Objective. Factors such as nature of psychiatric disorder, length of hospitalization and oral-side effects of psychotropic medications may considerably contribute to high prevalence of oral diseases among people with schizophrenia, and a consequent need for prosthetic rehabilitation. The aim of this study was to ascertain the oral health level of prosthetic rehabilitated patients with schizophrenia and to consider their needs for future improvement of prosthetic rehabilitation. Methods. The study group comprised 52 patients with schizophrenia, hospitalized at the Clinic for Mental Disorders ?Dr Laza Lazarevic? Belgrade. The control group comprised 52 patients with no psychiatric medical history, treated at the School of Dental Medicine, University in Belgrade. The oral health indices (DMFT index, CPITN and OHI-S), socio-demographic characteristics, smoking habits, oral hygiene habits and previous dental visits were registered in both groups, as well as medical characteristics of the primary disease in the study group patients. Results. Fifty percent of the study group patients had partial mobile dentures, while almost 30% had fixed dentures, in opposite to the control group patients who prevalently had fixed dentures. In both groups of patients, a statistical significance was observed between partial mobile and fixed dentures wearers, in terms of DMFT index, carious teeth, CPI modified and OHI-S. Similarly, a statistically significant difference between groups was observed concerning fixed dentures in terms of carious teeth, filled teeth, CPI modified and OHI-S. Conclusion. Multidisciplinary approach is needed for complete oral and prosthetic rehabilitation of this group of psychiatric patients.