Minerva stomatologica最新文献

Traumatic injuries to the primary dentition are critical events in dentistry not only due to the need for urgent care, but also since they have potential sequelae in the permanent dentition, with a prevalence ranging from 12% to 74%. The aim of this article was to provide an overview of the prevalence, etiology, and clinical and radiographic characteristics as well as the management of permanent teeth sequelae resulting from traumatic injuries to their deciduous predecessors. An extensive literature review was performed to reveal the current evidence on enamel discoloration with or without hypomineralization/hypoplasia, crown dilaceration, odontoma-like malformation, root anomalies, partial or complete arrest of root formation, sequestration of the permanent tooth germ, and eruption disturbances.

Background: The aim of this pilot study was the evaluation of primary, idiopathic mucosal dryness (xerostomia or dry mouth) in subjects without cancer.

Methods: A group of non-diabetic subjects and a group of diabetics were managed with standard management (SM) or with SM+Pycnogenol® (150 mg/day) for 2 weeks.

Results: In total, 48 subjects were included in the study; 24 diabetics and 24 non-diabetics. 12 diabetics and 12 non-diabetics took Pycnogenol® and 12 diabetics and 12 non-diabetics were followed up with standard management only and served as controls. No side effects and no tolerability problems were observed with Pycnogenol®. The registry groups were comparable for characteristics and symptoms at baseline. All otherwise healthy subjects had a BMI<26 kg/m2. In 2 weeks, salivary flow and oxidative stress improved significantly in both groups of subjects (non-diabetics and diabetics) with 150 mg/day Pycnogenol® (P<0.05), while minimal improvements in salivary flow were seen with SM. The subjective score and the number of mucosal breaks and ulcerations, all minimal (<1 mm in length or diameter), were significantly decreased with Pycnogenol® supplementation (P<0.05) with minimal variations in the SM controls. Finally, the mean lysozyme level in parotid saliva samples was significantly increased in the Pycnogenol® group (P<0.05) both in diabetics and non-diabetics.

Conclusions: Based on these preliminary results, Pycnogenol® could be a new, valid option for the treatment of xerostomia.

Introduction: The management of anxiety and fear of patients experiencing medical treatment is always a major issue. Dentistry is a branch of medicine that is daily in managing these problems, especially in the case of pediatric patients. Odontophobia can be managed in different ways, and the purpose of this study is to eventually review which methods are currently accepted and which are the most effective.

Evidence acquisition: The literature analysis was conducted on a number of articles, suitably skimmed, after a first research, obtained from the most common scientific databases. The number of works included in the review is 28.

Evidence synthesis: From the RCTs evaluated we could highlight that there are different methods in the literature, equally effective and certainly conditioned by the systemic condition of the patient. Another chapter instead turns out to be that linked to the management of the syndromic patient.

Conclusions: It is clear that there are different methods and equally different ways to manage our patients in the event of non-cooperation in the case of dental care. In addition to proper management by the clinician, in the literature methods linked to audiovisual distractions, hypnosis or pharmacological methods that produce conscious sedation are effectively reported.

Introduction: In the last few years the surgical treatment of patients with maxillary sinus disease has shifted from more invasive maneuvers to more conservative approaches in order to save intraoral mucosa. Recently, some authors have proposed a modification to the classical Caldwell-Luc's approach (CL) for the removal of dental implants displaced into the maxillary sinus. The modified approach involves a fenestrated approach to the maxillary sinus. The bony pedicled windows of maxillary sinus in some selected cases may limit some of the most common complications and it may reduce healing times.

Evidence acquisition: Evaluation of the middle term results of a maxillary fenestrated sinus approach as an alternative technique to CL and review of literature.

Evidence synthesis: From 2013 to 2017 thirty-one patients were treated with the CL modified technique, most of which for foreign bodies, displacement of endodontic material and implants in the maxillary sinus, large mucoceles and odontogenic maxillary sinusitis. All patients were subjected to clinical, and in some cases radiological, from 6 months to 18 months follow-up. Different combinations of Keywords and MeSH term were used for the bibliographic research in the main search engines (PubMed, Cochrane library, Medline). Inclusion criteria - fenestrated approach to the maxillary sinus, postoperative complications, description of the operative case.

Conclusions: No complications occurred in the intraoperative period and during the months of follow-up. There has been no recurrence of the starting problem and all treated patients were free from residual maxillary pathology 18 months after surgery. Four works meeting the inclusion criteria were identified. The surgical fenestrated approach to the maxillary sinus is a valid alternative to the classical Caldwell-Luc techniques that, alone or in combination with endoscopic sinus surgery, allow to treat foreign bodies of maxillary sinus, of mucoceles and other diseases of the maxillary sinus. The proposed technique does not require particular surgical skills, it does not increase the operating time and can also be performed under local anesthesia.

Background: The decision of removing a non-impacted 3rd molar, unlike extraction of an impacted 3rd molar, is challenging for dentists as well as patients. This study investigates the pathologies affecting second molars situated adjacent to asymptomatic non-impacted 3rd molars.

Methods: This retrospective study included digital radiographs of 749 patients taken between April to October 2015. Panoramic radiographs were evaluated for the presence of erupted asymptomatic non-impacted 3rd molars and pathologies on adjacent second molars. The patients were reviewed according to age and gender.

Results: A total of 2342 asymptomatic 3rd molars were assessed in the study based on the inclusion and exclusion criteria, and 2112 of them were found to be non-impacted. The second molars adjacent to non-impacted 3rd molars were shown to be significantly associated with distal caries (25.2%), mesial bone loss (10.5%) and total bone loss (37.2%), i.e., mesial as well as distal bone loss.

Conclusions: Pathologies of the 3rd molars and teeth adjacent to 3rd molars can occur as a result of multiple factors. Caries and periodontal disease may also occur due to the inaccessibility to maintain oral hygiene. With a regular follow-up schedule, reinforced by the dentist and good oral hygiene, several pathologies that are significantly associated with non-impacted 3rd molars can be prevented and may not require prophylactic extraction.

Background: The aims of this study were to enumerate the primary implant stability quotient (ISQ) value of self-tapping dual etched implants and to explore the influence of parameters such as implant length, implant diameter, age, gender, implant location and osteotomy preparation on the ISQ value.

Methods: Retrospective data from clinical worksheets given to participants during two implant courses held between the periods of 2013 to 2014 were evaluated. A total of 61 implants were considered based on the inclusion criteria. The effects of parameters such as implant diameter, implant length, age, gender, implant location and osteotomy protocol on ISQ values were analyzed.

Results: Mean ISQ value for all implants was 67.21±9.13. Age of patients (P=0.016) and location of implants (P=0.041) had a significant linear relationship with the ISQ values. Within the age limit of the patients in this study, it was found that an increase in one year of patient's age results in 0.20 decrease in ISQ value (95% CI: -0.36, -0.04). However, placing an implant in the posterior maxilla may negatively affect the ISQ with a likely decrease in primary stability by 6.76 ISQ value (95% CI: -13.22, -0.30).

Conclusions: The results suggest that the mean ISQ achieved by the participants were comparable with the range reported for this particular type of implants. The patient's age and location of implants were elucidated as the determinant factors of primary implant stability.

Background: Chemical curettage has become popular in the definitive treatment of benign aggressive odontogenic lesions. Therefore, this study aims to verify the relapse rate and associated factors after the enucleation protocol, peripheral ostectomy and Carnoy's solution.

Methods: This is a retrospective sectional study with 30 patients, selected by non-probabilistic convenience sampling, submitted to the protocol from 2008 to 2018. The study was composed by the data collection phase of the medical records and clinical and radiographic analysis of the patients in order to verify the presence of relapses. Descriptive and statistical analyzes were performed using the Stata/IC version 14.0 program (StataCorp, College Station, TX, USA). The Mann-Whitney Test, Fisher's Exact Test and the χ2 Test, as well as the Kaplan Meier method and the Log-rank Test were used to verify the possible prognostic factors for relapses, adopting P<0.05.

Results: The sample consisted of 22 patients with odontogenic keratocysts (73.3%), 3 odontogenic myxomas (10%) and 5 ameloblastomas (16.7%). Relapses affected 7 patients (23.3%), all in odontogenic keratocysts, and the relapse time was between 12-34 months. There was no statistical difference between the evaluated factors and relapse development. Patients who remained with teeth adjacent to the lesion after treatment had an earlier relapse time, a cumulative risk of more than 80% for relapse after 29 months postoperatively, and a 5.5 times greater chance of developing relapses than patients who had their teeth extracted.

Conclusions: The protocol is advantageous when compared to isolated treatments and can be used as an alternative to resection.

Background: To evaluate the effects of adhesive systems and primer systems on microshear bond strength of chemically activated resin cemented to Co-Cr cast dental alloy.

Methods: Seventy-two rectangular blocks of Co-Cr metal alloy were manufactured and air-abraded with 50-μm Al2O3 particles. Metal primers (alloy primer [AP] or Clearfil ceramic primer [CP]) and adhesives (Adper Scotchbond Multi-Purpose Adhesive activated by Adper Scotchbond Multi-Purpose Adhesive Catalyst [SASC], or Primer & Bond 2.1 activated by Self Cure Activator [PBCA]) were applied and subsequently divided into six groups (SASC; AP+SASC; CP+SASC; PBCA; AP+PBCA; CP+PBCA; N.=12). Then, resin cement (Enforce) was applied. Data about microshear bond strength values were statistically evaluated by analysis of variance and Tukey's test.

Results: The bond strength was lower (P<0.001) in groups with adhesive system alone (SASC and PBCA) compared with groups with addition of primers alloy primer (AP+SASC and AP+PBCA) and ceramic primer (CP+SASC and CP+PBCA).

Conclusions: The application of primers improves the bond strength of the cement resin to the Co-Cr metal alloy.