Prosthodontics treatment using a post to restore fractured crowns on where an endodontic procedure had been performed, might be suffered to some failures. This event remains a significant health issue that can benefit an intradisciplinary approach, involving both the endodontist and the prosthodontist, as an alternative to improve the outcomes. This article purpose is to review the opportunities for coordinated

intradisciplinary care between those specialties through the concept of complementarity relationship under “configuration” theories, by testing whether intraprofessional collaboration in dentistry, through an integrated practice, can improve the prognostic of prosthesis crown & bridges using dowel posts on endodontically treated tooth and estimate how it affects treatment failure.

We had conducted a longitudinal cohort study (retrospective study) using data collected from two dental facilities in Port-au-Prince, where patients had received treatment from 2006 to 2013.

Our analysis revealed that factors like the duration of treatment (2.20 (1.6-3.0); 4.80 (4.0-7.0)) and the number of roots (1.50 (1.3-2.0)) which have significant proficiency statistically (p<0.001) to induce failure to appear to be increased in effect when considering a solo-based practice. It also appears in our findings that using cast gold posts to restore fractured crown might be regarded as a protective factor (0.78 (0.56 - 1.08); p<0.1) for the restored tooth. Although some articles have supported the use of prefabricated post/core in restoring endodontically treated teeth, our findings suggest that permanent coronal restorations should have taken place as soon as possible to prevent fracture and then failure, whatever the type of materials we made the post/core. Intradisciplinary action among dental colleagues on caring issues requires, to be successful, that all parties to be involved in reducing post-treatment complications and failures, by addressing on a common front all that can be considering as a potential risk and compromising to the final restoration. This paradigm appears to be the feature of the complementary system, which allows through an integrated approach the way to apprehend coercive elements.

Objective: Due to the increasing demands of conservative fixed dental prostheses; many dentists have been using resin bonded fixed partial dentures (RBFPDs). Advances in adhesive technology together with a better understanding of the clinical function of such restorations have allowed resin-bonded fixed partial dentures to play an important role in clinical practice. The present in vitro study aimed to determine the

effect of basic bridge designs of anterior resin bonded fixed partial dentures and added retentive mean on debonding of metal frameworks with different metal surface treatments.

Material and Methods: Typodont teeth were used and preparation designs of resin bonded fixed partial dentures replacing maxillary lateral incisor were made in two groups: (Fixed fixed RBFPDs and Cantilever RBFPDs) (n=30), each group was divided into 2 subgroups according to retentive mean preparation (n=15) then each subgroup was divided into three divisions according to surface treatments: Air borne particle

abrasion, Air borne particle abrasion with primer, Tribochemical coating (n=5). Frameworks were then cemented to epoxy resin dies then subjected to tensile loading until failure.

Results: The results showed that design had a statistically significant effect on debonding at P- value <0.001. Also retentive means had a statistically significant effect on debonding at P-value <0.001, surface treatments had statistically significant effect at P-value <0.001. The interaction between the three variables had a statistically significant effect on viability % at P-value <0.001.

Conclusion: Use of RBFPD to replace maxillary lateral incisor can be a minimally invasive solution but as with any form of treatment, the use of RBFPD is not without limitations and success is associated with appropriate case selection and planning.

Purpose: The aim of this study is to access shear bond strength of translucent zirconia and lithium disilicate to dentin using different ceramic surface treatments.

Material and Methods: twenty discs of translucent zirconia were obtained by cutting InCoris TZI blocks into discs (4mm diameter,2mm thickness). Twenty lithium disilicate discs (E-max) of the same dimensions were obtained by pressing technique. Each group of discs (n=2) were subdivided into 4 groups according to the type of surface treatment received; air abrasion, hydrofluoric acid etching, tribochemical silicacoating

and control group which didn’t receive any surface treatment. Self-adhesive universal resin cement RelyX U200 was used without any pretreatment steps, shear bond test was done at the ceramic dentin interface and the load required for debonding was recorded. The mode of failure of each specimen was determined by inspecting the bonding surfaces of each specimen using stereomicroscopy.

Results: Comparing both materials with the different surface treatments revealed that the maximum mean load was recorded in lithium disilicate with HF surface treatment, whereas the lowest value was obtained with translucent zirconia with HF surface treatment. ANOVA test revealed that the difference between both materials with different treatments was extremely statistically significant. Failures were classified

as adhesive if less than 25% remained on the tooth structure or the disc and mixed if certain areas exhibited adhesive fracture.

Conclusion: the surface treatment can significantly affect the shear bond strength of translucent zirconia to dentin. The best surface treatment can be used to achieve a strong reliable bond to translucent zirconia is tribochemical silica coating. Hydrofluoric acid etching achieved a strong bond when used with lithium disilicate glass ceramic. Failure mode analysis revealed an increase in the adhesive failures corresponded

to a decrease in bond strength.

Hereditary sensory and autonomic neuropathy type IV (HSAN-IV) is an autosomal recessive rare disorder characterized by lack of maturation of small myelinated and unmyelinated sympathetic nerves absence resulting in pain and temperature insensitivity, hypotonia, developmental delay, mental retardation and anhidrosis due to lack of innervations of sweat glands resulting in recurrent fever episodes. Self-mutilations,

osteomyelitis, deformities of joints, multiple fractures and corneal scarring are the most frequent complications. We report a case of a 5-yearold girl from cousin parents with HSAN type IV

Background: Aggressive periodontitis is an inflammatory disease initiated by mixed opportunistic bacterial pathogens in the dental plaque biofilm. aggressive periodontitis often leads to loss of supporting soft and hard tissues around a tooth. Diagnosis of aggressive periodontitis has often been based on clinical parameters such as probing pockets depths, clinical attachment levels, bleeding on probing, mobility scores and gingival recession. Unfortunately, such parameters show no indication of how the disease affects the patients themselves. Of recent years, patient-centered assessments such as Oral Health-Related Quality of Life (OHRQoL) are increasingly appreciated and being applied. Such measures include the functional, psychological and social consequences of oral conditions for the individual, and not only signs and symptoms of the disease itself. The aim of the present study was to assess the Oral Health-Related Quality of Life among Groups of Aggressive Periodontitis Patient and Healthy.

Methods: A Comparative descriptive cross-sectional study was conducted at the periodontology clinics Faculty of Dentistry, University of Khartoum and Khartoum Dental Teaching Hospital. The sample consisted of 46 individuals with aggressive periodontitis and 46 individuals’ healthy individuals without periodontal disease. Data were collected on age, gender and the Oral Health Impact Profile (OHIP-14) was administered in interview format for the evaluation of the impact on quality of life. Clinical examinations were performed and was filled out for each participant, on Plaque Index, Bleeding on Probing, probing depth, and clinical attachment loss were recorded. All participants received clarifications regarding the objectives and procedures of the study and agreed to participate by signing a statement of informed consent.

Results: A total of 92 subjects were enrolled in the study. The female gender was predominant in the two groups: 87% of the aggressive periodontitis group and 76.1% in the healthy group. Among aggressive periodontitis group (47.8 %) were diagnosed with generalized periodontitis while (52.2 %) diagnosed with localized aggressive periodontitis.The aggressive periodontitis group had a negative effect on their OHRQoL regarding functional limitation, physical pain, psychological discomfort, physical disability, social disability and handicap domains.

Conclusion: This study demonstrates a significant association between oral health‐related QoL and aggressive periodontitis.