central incisor
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Objectives: The aim of this case report is to report the radiographic features of an internal resorption in maxillary central incisor and to emphasize the benefits of CBCT in this case. Case Report: A 14-year-old male went to Universitas Padjadjaran Dental Hospital with a discoloration of his fracture upper anterior teeth. The anamnesis revealed that the patient had history of a fall in about 6 years ago. Patient didn’t complain about pain when examination happened and wanted to have his teeth treated. Periapical radiograph showed an internal resorption in maxillary central incisor. Cone beam computed tomography (CBCT) was used to see other findings before determining the treatment plan. Conclusion: Internal resorption gives a characteristic appearance on the radiograph. CBCT modalities provide more information than conventional ones so that the use of this modality is not only to establish a diagnosis, but also can be used in determining the right treatment plan.

The purpose of this study was to determine the prevalence of favourable anatomy for palatal emergence of an immediate flapless implant in the maxillary central incisor post-extraction site. Implants were virtually placed into maxillary central incisor sites using 3D implant planning software. Following a strict implant placement criteria to keep a safety distance to the buccal plate and other anatomical structures, sockets where assessed to determine their suitability for a palatally emerging implant. From 321 patients included in this study, 62.3% presented a suitable socket anatomy for an immediate implant to be placed with the angulation for a screw retained crown. In 29% of the cases, the implants had to be labially tilted to keep a minimum distance to the buccal plate. 8.7% were unsuitable for immediate implants due to anatomic limitations. The position and angulation for an implant  in  the  maxillary  central  incisor  socket  should  be  carefully  assessed  preoperatively  with  3D  images,  as  many  sites  will  not  be  candidates  for  a  palatal  emergence and thus, a  screw  retained  restoration.

Management of traumatic injuries to the teeth is a challenge to the practicing dentist. It has no prescriptive method for occurring, possesses no significant predictable pattern of intensity or extensiveness and occurring at times when dentists are least prepared for it. Ninety-two percent of traumatic injuries results in fracture of maxillary permanent central incisors because of its protrusive and anterior positioning. The young permanent maxillary central incisor root canal chamber is large and tapered. This case report describes the management of Ellis Class III fractured tooth in a young permanent maxillary central incisor by an innovative clinical procedure. Keywords: tooth fracture, cast post core, trauma, metal ceramic

Objectives: The bracketless orthodontic treatment (BOT) is an alternative technique which indicates using an orthodontic appliance composed of wires and composite resin assisted by 3D technology. However, the biomechanical response of central incisor orthodontic movement has yet to be investigated. Thus, the aim of the present investigation was to calculate the stress magnitude in central incisor movement through 3D finite element analysis using different wire diameters (0.012”, 0.014”, and 0.016”) of nickel–titanium wire and two different resin composites (Opallis and Filtek). Materials and Methods: A 3D volume composed of enamel, dentin, cortical bone, cancellous bone, periodontal ligament, composite resin, and different orthodontic wire diameters was designed. After the modeling process, the models were exported to computer-aided engineering software divided into a finite number of elements, and a mechanical structural static analysis was conducted. Results: The stress results were plotted on colorimetric maps and in tables for comparison between the different models. The results showed that the central incisor orthodontic movement with BOT does not induce damage to the periodontal ligament, dental root, or bone tissue, regardless of the simulated orthodontic wire diameter and resin composite materials. The palatal composite resin and orthodontic wire also presented acceptable stress magnitude during orthodontic movement. Conclusion: Thus, the BOT technique promoted a suitable biomechanical response during central incisor movement regardless the resin composite.

The present report aimed to explore the case of an 8-year-old patient with chief complaint of the lack of eruption of the maxillary right permanent central incisor, referring to the Department of Pediatric Dentistry, Faculty of Dentistry, Hamadan University of Medical Sciences. The corresponding tooth on the contralateral side had fully erupted. The patient’s history revealed that the predecessor deciduous tooth had sustained a trauma, resulting in the partial intrusion of the tooth into the alveolar bone, that is, the relative intrusion of the deciduous central incisor. CBCT examinations were ordered for further evaluation, which showed the upward displacement of the permanent tooth bud in the alveolar bone as a result of the trauma, adhering to the floor of the nasal cavity. Therefore, root formation was halted, making the tooth embedded.

: In prosthodontics, esthetics a combination of the art and science. Patients requiring complete dentures usually expect comfort first, followed by harmonious appearance, and lastly efficiency. Therefore, the correct selection of the artificial teeth is essential for achieving a pleasant esthetic outcome. A number of soft tissue landmarks have been purported as useful for anterior tooth selection; but these are easily affected by several factors such as aging and the weight and build of the person. In the present study hard tissue landmarks like pterygomaxillary notches and maxillary arch width was presented as alternative anatomical landmark for anterior teeth selection. The aim of the study was to evaluate the hamular width and inter maxillary arch width which could be the guide for the selection ofartificial teeth for complete maxillary denture in the North-East Indian population.The study was conducted on 100 dentate individuals from the North Eastern Indian population, between the age group of 18- 30 years. All measurements were done with digital calliper on cast obtained after impression with irreversible hydrocolloid impression material.Pearson correlation analysis showed, statistically significant correlation between maxillary archwidth and central incisor width. The result was significant at p<0.05 but not high enough to be practically used. Correlation between hamular width and central incisor width was found to be insignificant. The value of R was 0.05435. The result was significant at p < 0.05. The maxillary arch width was in direct proportion to the maxillary central incisor width which meant that the increase of maxillary arch width,there was a corresponding increase of maxillary central incisor width. Significant correlation was found between maxillary arch width and central incisor width with p value=0132. The result was significant at p<0.05 but not high enough to be practically used. But In this study statistically insignificant correlation was found between hamular width and central incisor width.

A 15‐year‐old male presented to the Department of Conservative Dentistry and Endodontics immediately after a facial injury having complain of persistent pain in the teeth and the front upper lips. Upon examination it was revealed trauma of the upper incisors, also injury to the marginal gingiva of the front teeth. Further inspections showed slight laceration of the oral mucosa in the lower labial sulcus. Radiographic examination revealed fracture of crown of maxillary central incisor. The treatment plan which was decided comprised of complete removal of fractured crown followed by root canal therapy and immediate post placement and reattachment of the crown.