Guided tissue regeneration (GTR) and guided bone regeneration (GBR) became common procedures in the corrective phase of periodontal treatment. In order to obtain good quality tissue neo-formation, most techniques require the use of a membrane that will act as a barrier, having as a main purpose the blocking of cell invasion from the gingival epithelium and connective tissue into the newly formed bone structure. Different techniques and materials have been developed, aiming to obtain the perfect barrier membrane. The membranes can be divided according to the biodegradability of the base material into absorbable membranes and non-absorbable membranes. The use of absorbable membranes is extremely widespread due to their advantages, but in clinical situations of significant tissue loss, the use of non-absorbable membranes is often still preferred. This descriptive review presents a synthesis of the types of barrier membranes available and their characteristics, as well as future trends in the development of barrier membranes along with some allergological aspects of membrane use.
The present study aimed to analyze local and regional changes in regards to odontogenic sinusitis in subjects with endo-periodontal lesions and diabetes mellitus and to investigate the effect on the level of glycemic control (glycated hemoglobin) that could be generated by adjunctive therapy with subantimicrobial doses of doxycycline. This study was performed on 51 subjects with diabetes who were divided into two therapeutic groups: 31 patients with diabetes (the study group) who underwent conventional endo-periodontal therapy and subantimicrobial doses of doxycycline and 20 patients with diabetes who followed only conventional endo-periodontal therapy (the control group). Patients underwent endodontic and periodontal clinical examination, with retro-dental-alveolar radiographs and CBCT examinations. For each patient, glycated hemoglobin A1c (HbA1c) was determined. This evaluation was performed at the beginning of the study, as well as 3, 6 and 12 months after baseline. A significant percentage of patients, both in the study group and in the control group, showed radiological signs of odontogenic sinusitis, totaling 29 patients (56.86%). Periodontal parameters revealed lower levels in patients who underwent the regimen which consisted of subantimicrobial doses of doxycycline; these results were maintained over the study period. Moreover, we demonstrated significantly reduced glycated hemoglobin levels throughout the study (12 months) in the doxycycline-treated group. This fact has far-reaching effects in the sphere of loco-regional complications as well, and the risk of odontogenic sinusitis can be significantly reduced.
Chemotherapy often presents side effects, including oral adverse effects that may interfere with the completion of the oncology treatment, threatening the outcome of the treatment and significantly affecting the quality of life of the patient. The aim of the present study was to evaluate two antiseptic, antimicrobial and antifungal substances that may be used in order to achieve improved oral hygiene and to lower the prevalence of side effects during chemotherapy. Patients were randomly divided into three groups: Placebo, oral rinse with cetrimide and mouth coating with a pharmacy-made compound (nystatin, neomycin and metronidazole). Their oral hygiene and periodontal parameters were determined at baseline and 14 days of use. It was revealed that the most effective clinical results were achieved in the group that used cetrimide mouth rinse that highlighted the best improvements of parameter values, whereas the control and coating-using group did not obtain statistically significant improvements. Cetrimide oral rinse was demonstrated to be an efficient adjunct method in achieving better oral hygiene and improved periodontal parameters in chemotherapy patients. The present study offers an alternative to the commonly used compounds that may present unwanted side effects in patients during chemotherapy, it promotes the importance of good oral hygiene in the prevention of chemotherapy-induced oral adverse effects and improves the quality of life of the patient.
Different methods and products have been investigated as measures of adjunctive therapy to scaling and root planing (SRP). Probiotic use has gained interest for this particular application, especially Lactobacillus spp. This split-mouth interventional prospective study aimed to evaluate the clinical effects of L. reuteri DSM 17938 with local application in periodontal pockets of severe periodontitis patients. The study was conducted on 40 subjects with stage 3–4 periodontitis who, based on a split-mouth model, followed SRP and SRP + L. reuteri solution in five weekly sessions. Probing depth (PD), clinical attachment loss (CAL), and bleeding on probing (BOP) were assessed at baseline and at three months after probiotic treatment completion. Both SRP and SRP + L. reuteri generated significant improvements of all three clinical parameters, but the changes were significantly better for SRP + L. reuteri treated sites. Therefore, we can conclude that adjunctive therapy with L. reuteri DSM 17938 could represent an interesting treatment option, particularly for severe periodontitis cases.
Physiological/normal tooth mobility may be defined as the slight displacement of the clinical crown of a tooth, which is allowed by the resilience of an intact and healthy periodontium, under the application of a moderate force. The factors influencing the success and longevity of dental splinting are the type of material used for the splint, the type of composite resin, the number and location of the dental units included for splinting (maxillary or mandibular arch). In periodontology, the term ‘splint’ is defined as the joining of two or more teeth into a rigid unit through restorations or fixed or removable devices. The purpose of using periodontal splints for tooth immobilization is to provide a period of rest in the areas where the healing process has begun and to allow normal functioning there where the tissues alone would not be able to withstand occlusal forces. The aim of the present study was to evaluate comparatively, by means of energy dispersive electron spectrometry (EDX), the chemical composition in the case of in vitro samples that structurally reproduce direct periodontal immobilization systems using fiberglass strips and fluid composite resins. The differences in the chemical composition of the investigated materials can influence their physiochemical properties, but also their biological and toxicological reliability. Elements such as C, O, Al, Si and Ba were identified as common elements among the resins tested in the present study. The only difference in terms of the component elements was found in the case of the fluid composite Clearfil Majesty ES Flow, which, apart from the elements mentioned, also presented Co in its structure.
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