This article shows the importance of an intra-oral guiding flange prosthesis in patients who have undergone resection of mandible due to an underlying pathology. The case series show how the use of a guidance prosthesis can re-educate the mandibular muscles and re-establish an occlusal relationship for the resected mandible. Fabrication of a Guiding flange prosthesis was done for patient's reporting to the department of Prosthodontics, with a significant deviation of mandible causing a deranged occlusion. Utilisation of various intra-oral prosthesis designs to overcome the deranged forces of the mandibular muscles have been shown. Basic designs used for fabricating the guidance prosthesis were buccal-based (maxillary based), palatal-based (maxillary based) and mandibular-based guidance. The re-establishment of the occlusal relationship was successful with the use, of any of the basic designs, of a guiding prosthesis. The patients could maintain a healthy occlusal relationship even after cessation of the therapy. This case series gives an insight as to how a Guidance prosthesis can be utilized either on an interim basis or as a part of definitive treatment too, although the success depends on the nature of surgical defect, patient's cooperation and early physiotherapy program.
Purpose – The aim of this study was to measure the mass of tooth structure removed in - Porcelain Laminate Veneers, Metal ceramic and All-ceramic crown preparation. To compare the mass of tooth structure removed from maxillary and mandibular incisors with canine teeth. Material and Methods – The study was conducted on a sample size of sixty teeth, selected based on the criteria that they had a single intact root, was free of caries, attrition, abrasion, erosion and had no sign of dental restoration. The bucco-lingual and mesio-distal dimensions of each specimen was measured at the cemento-enamel junction by using a thickness gauge and weighed. The specimen teeth were then prepared for receiving Porcelain laminate veneer, conventional metal ceramic and all-ceramic restoration according to pre-determined standardized preparation design. Results – There was statistically significant difference in mean final weight between laminate veneer & metal ceramic. (P value <0.05). In laminate veneers there was significantly less loss of weight as compared to the other types of preparations. Percentage of weight loss in laminate veneer was minimum followed by all ceramic & metal ceramic. The percentage of loss of tooth structure for incisor and canine group for all selected types of restorations were not significantly difference. (P value >0.05). Conclusions – Though the metal ceramic restorative procedure is most widely practiced across the world it demands highest amount of tooth structure removal. So, when clinical condition permits, considering this restorative procedure, the clinician may think over the other modalities of treatment once more.
For any dental implant procedure that is being carried out, the success will depend on a thorough pre-operative investigation. The quality, quantity and the volume of available bone at the planned implant site has to be assessed properly when planning a dental implant placement. When we speak of the fore-mentioned aspects pre-surgical imaging and its co-relation to clinical findings help assess the relation to the amount of bone available from underlying vital parts namely the sinus cavities, nasal floor, nerves, teeth and vessels. Different radiographic modalities have been advocated for its assessment. Intra Oral Peri-apical radiograph (two-dimensional) is one such modality that has lost its importance after the introduction of more advanced techniques like Cone Beam Tomography (three-dimensional). This article will help us understand how two-dimensional and three-dimensional imaging modalities go hand in hand while treating dental patients. It will also explain why the conventional imaging technologies are still required in this era of modern methods of imaging.
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