Crown dilaceration can result from an intrusion of the primary incisor when a child is around the age of 2 years, when half the crown is already formed 6,1214. We aimed to determine the prevalence and distribution of root dilaceration by tooth type and to investigate the relationship between trauma history and teeth with dilaceration in a large population of adult dental patients in turkey. It is defined as an angulation or sharp bend or curve in the linear relationship of the crown of a tooth to its root 6. Case reports in dentistry hindawi publishing corporation. Developmental disturbances of the teeth slideshare. Factors contributing to impaction include developmental anomalies such as malposition, dilaceration, ankylosis, tumors, odontoma, dentigerous cysts, presence of supernumerary teeth, and systemic genetic interrelation such as cleidocranial dysostosis and.
It is recognized that damage limitation and sequelae prevention in the developing tooth germ should guide dental trauma. Teeth were recognized as having mesial or distal root dilaceration if there. Crown dilaceration in permanent teeth after trauma to the. It is believed that, trauma to a partially calcified developing tooth may cause displacement of its hard calcified portion and later on, the remaining uncalcified portion of the tooth is formed at an angle. Causes of impaction local cause obstruction for eruption lack of space ankylosis of primary or permanent tooth nonabsorbing, over retained tooth nonabsorbing alveolar bone ectopic position of tooth bud dilaceration of roots soft tissue or bony lesions fibrosis habits. In dentistry, an abnormal angulation or curve in the root or crown of a formed tooth. Revascularization of an impacted, immature dilacerated. Journal of dentistry, 3, 223224 maceration of both upper central incisor teeth. Dilaceration may appear in both permanent and pri mary teeth but incidence in the latter is very low. Director, division of pediatric dentistry abnomalities of teeth environmental alterations developmental alterations environmental alterations effects on tooth structure development localized systemic postdevelopmental structure loss discoloration of teeth localized disturbances of eruption. The international association of dental traumatology iadt has through its board of directors developed a series of guidelines for treatment of all types of traumatic injuries affecting primary and permanent teeth. The prevalence of crown dilaceration constitutes 3% of the total injuries in developing teeth and is usually because of intrusion or avulsion of their primary predecessors.
Crown dilaceration of permanent central incisor as a result of different etiologic factors. Endodontic management of a maxillary lateral incisor with an unusual root dilaceration diagnosed with cone beam computed tomography mahmoud mohammed eid mahgoub 1, ahmed abdel rahman hashem 2, hany mohamed aly ahmed 3 1 endodontic microscope center, future university. Root dilaceration was present in 6 permanent incisors 4. Developmenta ldisturbances of the teeth prepared by. Trauma, altered tooth germ position and delayed tooth eruption have been hypothesized as possible causes of tooth root dilacerations and flexion, however these anatomical variations appear more commonly associated with posterior teeth and absence of traumatic history. Crabb, bids, fds rcs, dorth rcs birmingham area health authority teaching abstract this report concerns a 10yearold indian girl in whom both permanent upper central incisor teeth were found to be dilacerated. The aims of this study were to verify the types of trauma more frequent to the predecessor teeth that cause dilaceration to their successor teeth, to determine the frequency of crown and root dilacerations in permanent incisors, taking into account the childs age at the time of trauma, and to describe the types of treatment performed. Dilaceration definition of dilaceration by medical. Prevalence of root dilaceration in adult dental patients.
Dilaceration is a rare disturbance in traumatized permanent teeth and constitutes about 3% of the total injuries to the developing teeth 1, 4, 5. Threedimensional representation of teeth with root dilaceration toshiko inoue 1, makoto saito 1, fumio nishimura 1, takashi miyazaki 1. Health, general bone resorption physiological aspects oral surgery methods orthodontics research tissue transplantation transplantation of organs, tissues, etc. It is thought to arise from trauma or crowding of teeth verstraete 1999. Crown dilaceration of a permanent tooth constitutes 3% of traumatic injuries to developing teeth.
Dilaceration is the result of a developmental anomaly in which there has been an abrupt change in the axial inclination between the crown and the root of a tooth, but the criteria in the. Indications for the use of autotransplantation of teeth in the child and adolescent. Prevalence of root dilaceration in adult dental patients in croatia ana malc. Endodontic specialist, egypt air hospital, cairo, egypt 2 department of endodontics, faculty of dentistry, ain. Dilaceration is thought to be due to trauma during the period in which the tooth is forming, with the result that the position of the calcified portion of the tooth is changed and the remainder of the tooth is formed at an angle 2. Crown dilaceration in permanent teeth after trauma to the primary predecessors. Effect of trauma to primary incisors on root development. Unerupted maxillary anterior teeth, by virtue of their position, have a major impact on dental and facial aesthetics and tend to adversely affect the nutritional and psychosocial wellbeing of the patient. Threedimensional representation of teeth with root. Dilaceration refers to asharp bend, curve or angulation in the root or crown of atooth. Case report an endoaesthetic management of crown dilaceration in a permanent mandibularcentral incisor abhijit d wankhade,1 ramesh kumar pandey,2 rajeev kumar singh,2 milind v naphade3 1department of pedodontics and preventive dentistry. An interdisciplinary approach p subramaniam 1, p naidu 2 1 professor and head of the department, the department of pedodontics and preventive dentistry, the oxford dental college, hospital and research center, bommanahalli, bangalore, india 2 post graduate student, the department of pedodontics and preventive dentistry, the oxford dental college, hospital and. Endodontic management of a maxillary lateral incisor with.
One of the causes of permanent central incisor eruption failure is crown or root dilaceration. Dilaceration might occur anywhere along the length of the tooth, i. Dilaceration and eruption disturbances in permanent teeth. Frequency of crown and root dilaceration of permanent. Report by european archives of paediatric dentistry. Traumatic injuries to the primary teeth can result in a wide range of anomalies in the permanent successor teeth. If you are a member of the iadt you can download the iadt trauma guidelines from 2007 using this link. Developmentaldisturbances 1 size 2 number and eruption 3 shapeform 4 defects of enamel and dentin 3. It is aform of fusion, where the teeth are united by cementum only. Full text threedimensional representation of teeth with.
Brown stains on the surface of the teeth could be due to the deposition of tannins found in tea, coffee and other. Periapical radiographs of 9,406 permanent teeth from 5,504 patients were examined. Dilaceration is an abnormal bend in the root or crown of a tooth. Root dilaceration is characterized by angulation or curvature of the root of the permanent tooth, following trauma to their primary predecessors and it has a prevalence rate of 4. Management of root dilaceration in a central incisor after. Dilaceration refers to an angulation or a sharp bend or curve, anywhere along the long axis of a tooth. The present article narrates a case of crown dilaceration of a permanent mandibular right central incisor with open apex and large periradicular pathosis and its endo. Interdisciplinary management of an impacted dilacerated. Crown dilaceration of a permanent tooth constitutes 3% of all traumatic injuries to developing teeth and is habitually due to intrusion or avulsion of their primary predecessors 8, 52. This results in altered morphology or shape of the tooth, commonly manifest as extreme bends or curves in an otherwise straight tooth. Congenital abnormalities are typically genetically inherited anomalies, and developmental anomalies occur during the formation of. Impacted maxillary central incisor with dilaceration vinay kumar reddy k1, venkateswara rao g2, jaya kiran m3 professor and head1 professor and head2 senior lecturer3 email for correspondence.
In some of the cases more than 1 type of change occurred in the same tooth. Dilaceration is the anamolie in the tooth shape and its structure and it refers to a sharp bend in the tooth which can be in the crown portion or in the root, making sharp angles at. Root dilaceration in a central incisor introduction traumatic dental injuries are common among children in primary dentition and are related to possible sequelae affecting the permanent succedaneous teeth 1. Prevalence assessment of root dilaceration in permanent. Edmondson, bids, mb, chb, fds rcs, da dental school, university of birmingham j. Although the root is affected most frequently, the bend may occur anywhere along the length of the tooth and has been noted in various teeth throughout the dentition. Review of dilaceration of maxillary central incisor. An endoaesthetic management of crown dilaceration in a.
Postulated is that tooth root dilaceration or flexion may be a result of tooth root sheath. Dilaceration is the result of a developmental anomaly in which there has been an abrupt change in the axial inclination between the crown and the root of a tooth, but the criteria in the literature for recognizing root dilaceration vary. Dilaceration is the anamolie in the tooth shape and its structure and it refers to a sharp bend in the tooth which can be in the crown portion or in the root, making sharp angles at the junction of the crown and root. A possible etiology for the dilaceration and flexion of. Indications for the use of autotransplantation of teeth. To determine the prevalence and distribution of dilaceration in all tooth groups by using radiographs. Dental anomalies may be congenital, developmental, or acquired and may include variations in the normal number, size, morphology, or eruptive pattern of the teeth. This injury is usually seen in the maxillary incisors and less frequently in their mandibular. Crown dilaceration of permanent central incisor as a. Tooth dilaceration is a developmental problem which involves the malformation of tooth either at the crown or root portion. Ase eport impacted maxillary central incisor with dilaceration. The prevalence of eruption disturbances in the permanent anterior teeth, following trauma to their predecessors, is seen in 17. Pdf crown dilaceration in permanent teeth after trauma.
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