Schwartz-Jampel Syndrome: a paediatric dentistry approach

Schwartz-Jampel syndrome (SJS) is a rare recessive disorder characterized mainly by myotonia. As the clinical signs and symptoms are manifested in the oromaxillofacial region, paediatric dentists may be first choice of parents that seek information and assistance to their children. A female patient diagnosed with SJS was brought to our clinic for dental treatment with main complain of difficulty on oral hygiene and mastication due to tooth crowding. The treatment included preventive measures, extraction of a supernumerary tooth and the maxillary primary second molars. Furthermore, the patient was referred to orthodontic treatment for correction of tooth crowding. When dealing with children with confirmed diagnosis of SSJ, paediatric dentists should be understand the need of planning the dental treatment considering the characteristics and possible complications associated with the syndrome in order to reduce the risks to patients, especially when surgical procedures are necessary.

Dental caries in children participating in a dentistry for infants program

To assess the impact of the "Dentistry for Infants" early dental care program run by Jacareí County (SP) by comparing the caries of individuals participating and not participating in this program. Methods: In total, 300 children between 0 and 48 months old were assessed in the following two groups: infants not participating in the program (G1, n = 100) and infants participating in the program (G2, n = 200). Each group was further divided according to age in subgroups of 0 to 24 months and 25 to 48 months. All children were clinically assessed for carious lesions using the visual-tactile method. The data were statistically analyzed using a paired Student's t-test, Mann-Whitney test, and c 2 test at a 5% significance level. Results: There was a significant difference in the prevalence (P) and mean index of deciduous teeth (deft) (C) that were decayed, indicated for extraction and filled, and the highest values were observed in G1 (p < 0.0001). The values were as follows: PG1, 73%; PG2, 22%; CG1, 3.45 ± 3.84; and CG2, 0.66 ± 1.57. Conclusion: Participating in the program positively impacted the infants' oral health.

Effect of reducing acid etching time on bond strength to noncarious and caries-affected primary and permanent dentin

The purpose was to evaluate the effect of acid etching time on the bond strength of a simplified etch-and-rinse adhesive system to noncarious and caries-affected dentin of primary and permanent teeth. Methods: Twenty-four extracted primary and permanent teeth were divided into three groups, according to the acid etching time. Four teeth from each group were exposed to a microbiological caries-inducing protocol. After caries removal, noncarious and caries-affected dentin surfaces were etched with 37 percent phosphoric acid for five, 10, or 15 seconds prior to the application of Prime & Bond NT adhesive. Crowns were restored with resin composite and prepared for microtensile testing. Data were submitted to Kruskal-Wallis and Mann-Whitney tests (á=0.05). Results: Higher bond strengths were obtained for noncarious dentin vs. cariesaffected dentin for both primary and permanent teeth. Reducing the acid etching time from 15 to five seconds did not affect the bond strength to caries-affected or noncarious dentin in primary teeth. For permanent teeth, lower bond strength values were observed when the noncarious dentin was etched for five seconds, while no difference was seen between 10 and 15 seconds. Conclusions: For Prime & Bond NT, the etching of dentin for five seconds could be recommended for primary teeth, while 10 seconds would be the minimum time for permanent teeth.

Photoelasticity in Dentistry: a literature review

Introduction and Objective: Photoelasticity consists of an experimental technique of stress analysis. This technique is very used in most different areas including Dentistry. This literature review presents the several applications of photoelastic technique in Dentistry the several applications of photoelastic technique in Dentistry as well as its advantages and disadvantages. Literature review: Based on this method of analysis, it is possible the verification of the stress distribution and deformation in structures with complex geometry as maxilla and mandible. It can be used to evaluate the distribution of stress on several types of prosthesis as removable partial denture systems with different retention systems, conventional implant prosthesis, overdentures and Brånemark protocols. Moreover, photoelasticity can be used to assess the stress generated by various by various orthodontic movements, different orthodontic systems and different materials (orthodontic wires). In addition, it is used to analyze different defects of maxillectomy, splint types on traumatized tooth and post-core restoration methods. This technique can also be used to assess dental instruments such as evaluation of different designs of periodontal probe. Conclusion: The photoelastic analysis has been a technique of great importance in health area studies, more specifically in Dentistry. Based on this method of analysis, it is possible to measure the stress distribution and deformation in structures with complex geometry as maxilla and mandible.

Increased durability of resin-dentin bonds following cross-linking treatment

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Sistemas cerámicos puros parte 1: una evolución basada en la composicíon

The continuing advances in technology, dental materials and equipment have contributed significantly to improve the level of esthetic dentistry today. Among these innovations, development of pure ceramic restorations has evolved to give different alternatives. Dental ceramics have presented a rapidly technological changing to improve mechanical and optical properties. Currently there are several systems of metal free ceramics with excellent mechanical and optical properties, for making crowns and plurals. These modern systems are presented with various compositions and different preparation techniques, making these more versatile. Within this perspective, the dental market offers a huge range of new indirect and metal-free materials for prostheses, providing new options, plus also new questions to decide among the available alternatives. The aim of this review is take a view of the different ceramic systems in terms of its composition and different techniques of production.

Sistemas cerámicos puros parte 2: materiales, propiedades ópticas y consideraciones clínicas

While dentistry continues to advance, the aesthetic techniques have evolved in proceedings more effective, functional and biocompatible. Meanwhile, cosmetic dentistry has become a bit more complex and technically difficult. With improvement of the properties (physical and optical) of the ceramics and the establishment of a working protocol, ceramic restorations have become increasingly popular. Currently there are several ceramic systems have excellent optical properties such as opalescence, fluorescence, translucency, chromaticity, which allow the restoration to mimic the tooth structure. From the physical point of view has restored biomechanical integrity and strengthening the remaining tooth structure. All this has led the profession to experience the use of new ceramic systems ranging from conventional feldspathic ceramics to modem ceramic reinforced, injected or computer-aid made. The material selection should be based on clinical need, aesthetic and functional requirements, restoration site, prosthetic design and laboratory techniques. In this article we will deal with the characteristics of the materials, their optical properties and clinical considerations for proper selection.

Indirect resin onlay cemented with self-adhesive resin cement: a comprehensive clinical overview

Advances in adhesive technology and esthetic dental materials have permitted clinicians to perform conservative preparation of the dentition for onlay restorations. Indirect resin onlays are a great alternative to dental crowns for reestablishment the function and esthetic in teeth with great destruction.

Interactions between restorative dentistry and periodontics: luting post nonmetallic (Part II)

Endodontically treated teeth have necessary use of intracanal posts. Due to the constant need and search for esthetic materials with properties similar to tooth structure remaining fi berglass posts esthetic came good these shortcomings and are increasingly used as a fi rst option for prosthetic rehabilitation. In this case report is described step by step how to perform the cementation of a nonmetallic post and core construction for making a piece prosthetic onlay in a simplifi ed way, by choosing the self-etching cementation technique.

Interactions between restorative dentistry and periodontics: preparation and cementation of an onlay in Empress (Part III)

The relentless pursuit by cosmetic dentistry brought the evolution of materials ceramics. The IPS-Empress system was upgrading of indirect restorations based on lithium disilicate. The ceramic restoration posterior allow a new esthetic approach due to its translucency and resistance without any weakening of the remaining dental element, being an option more conservative when compared to conventional prosthetic restorations.

Application of the finite element method in Dentistry

The finite element method (FEM) involves a series of computational procedures to calculate the stress in each element, which performs a model solution. Such a structural analysis allows the determination of stress resulting from external force, pressure, thermal change, and other factors. This method is extremely useful for indicating mechanical aspects of biomaterials and human tissues that can hardly be measured in vivo. The results obtained can then be studied using visualization software within the FEM environment to view a variety of parameters, and to fully identify implications of the analysis. Objective: An overview to show application of FEM in dentistry was undertaken. Literature review: This paper shows the basic concept, advances, advantages, limitations and applications of finite element method (FEM) in dentistry. Conclusion: It is extremely important to verify what the purpose of the study is in order to correctly apply FEM.

Application of hte finite element method in Dentistry

Introduction: The finite element method (FEM) involves a series of computational procedures to calculate the stress in each element, which performs a model solution. Such a structural analysis allows the determination of stress resulting from external force, pressure, thermal change, and other factors. This method is extremely useful for indicating mechanical aspects of biomaterials and human tissues that can hardly be measured in vivo. The results obtained can then be studied using visualization software within the FEM environment to view a variety of parameters, and to fully identify implications of the analysis. Objective: An overview to show application of FEM in dentistry was undertaken. Literature review: This paper shows the basic concept, advances, advantages, limitations and applications of finite element method (FEM) in dentistry. Conclusion: It is extremely important to verify what the purpose of the study is in order to correctly apply FEM.

Effectiveness of different methods for the detection of binge drinking in dentistry students

The purpose of this study was to estimate the alcoholic beverage consumption among undergraduate students of a Dentistry Course and compare the effectiveness of screening methods for the detection of binge drinking. A total of 284 undergraduate students participated in the research. We used the full AUDIT and their reduced forms (AUDIT-3 and AUDIT-C). In addition, a ROC curve was created and its area was calculated. Of the students, 91.0% and 90.6% of the male and female genders, respectively, reported alcohol beverage consumption. Bing-drinking behavior occurred in 69.2% of the men and in 52.4% of the women. The 3 methods showed good discriminatory ability. For the women, there was a significant difference between the AUDIT-3 and AUDIT-C. Both the complete version of AUDIT and its reduced forms presented good discriminatory ability

Dentistry teachers and the burnout syndrome

The Burnout Syndrome is considered a psychosocial problem to which teachers are routinely exposed. This study was conducted to estimate the prevalence of burnout in Dentistry teachers and its relation to relevant socio-demographic variables. The participants were 70 teachers from the undergraduate Dentistry Course, Faculty of Dentistry of Araraquara – UNESP. Oldenburg Burnout Inventory (OLBI) was used. The prevalence of burnout was estimated. In order to compare performed. Mean age of participants was 46.0 ± 6.1 and teaching experience was 19.6±7.6 years. The prevalence of burnout was 17.1%. Low mean scores for Exhaustion (2.11±0.61) and Disengagement (1.73±0.50) were observed. There reported taking medication due to work (p=0.008) and for those who have thought about quit teaching (p=0.001). There scores according to the habit of taking medication, the experience as a teacher and gender

Predictors of Burnout Syndrome in Dentistry Students

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)