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AIM orPURPOSE: Compare theflexuralstrengthofautopoly- merising and3Dprintedresins. MATERIALS andMETHOD: Samples weremadeaccordingto ISO 20795-1:2013standardstocarryoutthethree-pointbend- ing test.Thesamplesweredividedinto2groups(n=20):For the firstgroup,sampleswereprintedusingaflashlightpho- topolymerization usingNextDentOrthoRigidresin.Autopoly- merizing resinspecimenswereproducedwithaconventional resin curedfor15mininwaterbathatatemperatureof55°C and apressureof200kPa.Allsampleswerestoredat(37 § 1° C) for7daysindistilledwater.The3-pointflexuralstrength test wascarriedoutusingauniversaltension/compression device. Themaximumload"F"exertedwasnotedandthen the flexuralmoduluswascalculated.Thedatawereanalyzed statistically bytheT-Studenttestwiththesignificancelevel set at0.05. RESULTS: Three-D printed resin showed the highest flexural strength followed by conventional resin without a significant difference. The 3d-printed resin with 2.01 § 0.17 GPa shows the significant h
VisiterABSTRACT Amelogenesis imperfecta refers to a group of hereditary diseases that affect dental enamel, often leading to a wide range of clinical manifestations and aesthetic concerns. This case report describes a female patient diagnosed with amelogenesis imperfecta associated with a skeletal open bite. The treatment approach was multidisciplinary. Periodontal therapy was initiated, followed by orthodontic treatment using brackets on temporary crowns to expand and coordinate the maxillary and mandibular arches. Subsequently, orthognathic surgery, including a LeFort I osteotomy and genioplasty, was performed. The fixed prosthodontic rehabilitation performed with metal-ceramic crowns was the last step of the treatment. The final result was both functionally and esthetically satisfactory for the patient. KEYWORDS: amelogenesis imperfecta, open bite, orthognathic surgery, orthodontics, dentistry, prosthodontics treatment
VisiterThe maxilla plays a primordial role in mastication, deglutition, and phonation. Maxillary defects can be the result of congenital factors, trauma, osteonecrosis, or even tumour pathology. The most common malignant tumours of the upper aero-digestive tract are squamous cell carcinomas. Soft and hard tissues defects resulting from resective surgeries of theses carcinomas cause damage on the functional, aesthetic, and psychological level. The treatment of postmaxillectomy defects includes different options, such as reconstructive surgery or rehabilitation with an obturator prosthesis. The treatment option depends on each clinical situation. The use of the removable obturator prosthesis offers several advantages by allowing the restoration of oral functions and improving patients’ quality of life. We, herein, report an approach to fabricate a rigid maxillary obturator prosthesis for a partially edentulous female patient with a velo-palatal defect. The removable prosthes
VisiterNowadays, traditional university training via lectures seems no longer to correspond to the current needs of society. The demand for quality and the growing ethical demand, as well as the fear of risk and its legal implications, now require a minimum acquisition of the gesture practice before its realization on the patient himself, by virtue of the founding ethical principle of teaching by simulation: "never the first time on the patient". The dental student is required to provide care and perform technical acts on patients and must be operational in his practice at the end of his university course. From this perspective, simulation-based learning is increasingly becoming an essential teaching form in higher education, both in initial and continuing training. In this context, the present study was carried out at the removable partial denture (RPD) department of the oral medicine and surgery clinic of Monastir (Tunisia) in order to explore the impact of procedural simulation on the le
VisiterThe treatment of a completely toothless mandibular arch represents a big challenge in the field of dentistry, especially when bone resorption is considered in the case of patients who remained without oral rehabilitation for a long period. The fabrication of a complete denture which would meet the requirements of prosthetic stability retention and comfort is often difficult. Even in the era of dental implantology, piezographic technique (impression and registration) remains an excellent option to overcome prosthetic instability due to the inevitable narrowing of the prosthetic corridor. The use of the neutral zone by piezographic recording leads to obtaining a complete denture respecting the physiology of the paraprosthetic organs and a better organization of the prosthetic teeth. The aim of this clinical report was to present, according to a didactic approach, the prosthetic steps to fabricate a complete denture rehabilitating a resorbed toothless mandibular arch,
VisiterAbstract Background: Enamel renal syndrome is a rare genetic disorder transmitted through an autosomal recessive mode. It is featured by a hypoplastic amelogenesis imperfecta, delayed tooth eruption, gingival fibromatosis, and nephrocalcinosis. The aim of this study was to describe clinically, radiologically, and histologically the main features of enamel renal syndrome and to point out the role of dentists in early diagnosing this genetic disease. Materials and methods: Our case of enamel renal syndrome was initially described by clinical, radiographic, and genealogic data, then complemented by ultrasound examination of the kidneys and microscopic observation of gingivae. Results: The study showed the presence of amelogenesis imperfecta (AI), several teeth impaction, gingival hyperplasia, bilateral nephrocalcinosis, and multiple calcifications in pulp, gingiva, dental follicle, and kidneys. Conclusion: The patient was followed for a full mouth rehabilitation and also ref
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