			Home About us Contact

Permanent Successors (permanent + successor)

Distribution by Scientific Domains

Medical Sciences	100%

Selected Abstracts

Dilaceration of maxillary central incisor: a literature review

DENTAL TRAUMATOLOGY, Issue 5 2010
Nikolaos Topouzelis
In early developmental stages, the permanent tooth germ of the maxillary incisor is situated palatally and superiorly to the apex of the primary incisor and gradually changes direction in a labial direction with its crown coming closer to the resorbing primary root. For reasons of this close relationship between the permanent tooth germ and the apex of the primary incisor, it is believed that an acute trauma to the primary predecessor can cause dilaceration of the long axis of the permanent successor. Clinically, dilaceration can be revealed by palpation high in the labial sulcus or in the hard palate, while its radiographic view is characteristic. The therapeutic approach to the dilacerated maxillary central incisors has to be carefully planned and needs the cooperation of several specialities to attain the final objective. [source]

Long-term effect of different treatment modalities for traumatized primary incisors presenting dark coronal discoloration with no other signs of injury

DENTAL TRAUMATOLOGY, Issue 1 2006
Gideon Holan
Abstract,,, The aim was to compare the long-term outcomes of root canal treatment with that of follow-up-only in traumatized primary incisors in which dark discoloration is the only sign of injury. Root canal treatment was performed in 48 dark discolored asymptomatic primary incisors following trauma. Twenty-five of them [root canal treatment (RCT) group] were followed till eruption of their permanent successors. Ninety-seven dark discolored asymptomatic primary incisors were left untreated and invited for periodic clinical and radiographic examination. Of these, 28 [follow-up (FU) group] were followed till eruption of their permanent successors. The parameters examined included early extraction of the traumatized primary incisor, early or delayed eruption of the permanent successors, ectopic eruption of the permanent successor and signs of enamel hypopcalcification or hypoplasia in the permanent successor. Chi-square test was used for statistical analysis. Seven of 25 (28%) of the RCT group and 32% (nine of 28) of the FU group required early extraction. Five of 25 (20%) of the RCT group and 21% (six of 28) of the FU group showed early or delayed eruption of the permanent successors. Sixteen of 25 (64%) of the RCT group and 79% (22 of 28) of the FU group showed ectopic eruption of the permanent successors. Enamel hypopcalcification or hypoplasia in the permanent successors was equally found (36%) in both groups (nine of 25 in the RCT group and 10 of 28 in the FU group). None of differences was statistically significant. Root canal treatment of primary incisors that had change their color into a dark-gray hue following trauma with no other clinical or radiographic symptom is not necessary as it does not result in better outcomes in the primary teeth and their permanent successors. [source]

Odontoma-like malformation in a permanent maxillary central incisor subsequent to trauma to the incisor predecessor

DENTAL TRAUMATOLOGY, Issue 5 2005
Paulo Nelson-Filho
Abstract,,, This report describes a case of a patient (1 year and 8 months old) with traumatic avulsion of the maxillary right primary central incisor and morphological changes in the germ of the permanent successor. One year after the trauma, an odontoma-like malformation developed. This malformation was removed 6 years after trauma and orthodontic treatment was started. Clinical follow-up and periodic radiographs are necessary after traumatic avulsion of primary teeth to monitor possible sequelae in the permanent successor. An odontoma-like malformation requires a multidisciplinary approach. [source]

Radicular cyst associated with a primary molar following pulp therapy: a case report

INTERNATIONAL JOURNAL OF PAEDIATRIC DENTISTRY, Issue 6 2001
M. Takiguchi
Summary. A radicular cyst arising from the primary second molar and causing displacement of the permanent successor to the lower border of the mandible, with accompanying buccal expansion, was examined clinically and radiographically. Extraction of the primary molar and extirpation of the cyst led to uneventful healing. The primary molar had received pulp treatment with therapeutic agents approximately 1·5 years prior to the patient's first visit. The relationship between pulp treatment and rapid growth of the radicular cyst is discussed. [source]

Usage of white mineral trioxide aggregate in a non-vital primary molar with no permanent successor

AUSTRALIAN DENTAL JOURNAL, Issue 1 2010
E Sen Tunc
Abstract The aim of this study was to present the treatment and long-term follow-up of a case in which white mineral trioxide aggregate (WMTA) was used in the pulpectomy of a non-vital primary molar with no permanent successor. The physiological, aesthetic and functional consequences of treating primary teeth without permanent successors makes this a unique challenge. In the present case, WMTA was used in the pulpectomy of a primary molar with no permanent successor in an 8-year-old child. The treatment was considered successful. Follow-up examinations showed that root resorption in the mesial root surface, with no infra-occlusion or ankylosis 36 months after treatment. WMTA may be considered as an alternative pulpectomy material for non-vital primary teeth with no permanent successors, although long-term clinical studies are still needed. [source]

Assessment of traumatic injuries to primary teeth in general practise and specialized paediatric dentistry

DENTAL TRAUMATOLOGY, Issue 2 2010
Carl Gösta Rasmusson
Materials and methods:, A total of 323 children with traumatic injuries, 184 boys and 139 girls aged 7,83 months, participated in the study. All the children had first presented at a Public Dental Service clinic where they were examined by general dentists who decided, based on the severity of the trauma, to assign each child to one of the following two groups: Group A , recommended for treatment at the general practise (166 children with 257 traumatized incisor teeth). Group B , recommended for referral to a specialist in paediatric dentistry (157 children with 261 traumatized incisor teeth). Even in Group A, the specialist controlled the treatment decisions. The clinical diagnose and follow-up followed the recommendations presented by Andreasen & Andreasen. Results:, The distribution of trauma by age was similar in both groups, with about 60% occurring between 1 and 3 years. More injured teeth were extracted in children in Group B (n = 111) than in Group A (n = 33). A higher percentage of intruded primary incisors were recorded in Group B (24%) compared with Group A (16%). Similarly, the percentage of concussions/subluxations, lateral luxations and complicated crown fractures was higher in Group B than in Group A. Conclusions:, The group referred for specialist treatment had more severe injuries and needed more complicated treatment than the group recommended for care by general dentists. However, the rate of sequelae in permanent successors was the same in both. [source]

Traumatic injuries to the primary dentition and effects on the permanent successors , a clinical follow-up study

DENTAL TRAUMATOLOGY, Issue 5 2006
Sabine Sennhenn-Kirchner
Abstract,,, This study investigated problems in the permanent dentition that, according to history and records, were attributable to dental alveolar injuries of the primary dentition. 106 children have been involved in the study, who had experienced primary anterior tooth trauma affecting a total of 200 teeth. Thirty-nine patients (81 teeth) were available for follow-up examinations. In 25% of the cases followed up, damage was found on the successors in the secondary dentition (16 children/20 teeth). In half of the cases, a comparatively mild form of lesion like enamel discoloration was observed. This was the result of an injury during the tooth maturation process causing enamel hypoplasia. Clinically more relevant were the dental deformities: cessation of root formation or retention caused by ankylosis, which made up the remaining 50% of cases. This was confirmed by clinical long-term observation. The different effects on the permanent teeth can only be detected by radiography after an interval of several months or may even be clinically assessed only after the eruption of the clinical crown. [source]

Long-term effect of different treatment modalities for traumatized primary incisors presenting dark coronal discoloration with no other signs of injury

Avulsion of primary teeth and sequelae on the permanent successors

DENTAL TRAUMATOLOGY, Issue 6 2005
Pia Christophersen
Abstract,,, The purpose of the present study was to determine the frequency of avulsion of primary teeth and the location of the avulsed tooth in a representative population of Danish children. Also, the frequency and the type of developmental disturbances in the permanent successors were assessed and related to age at the time of injury. The material included dental records of 4238 children from three clinics in Municipal Dental Health Services near Copenhagen, Denmark. The children were born between 1 January 1983 and 31 December 2000. Thirty-five children (0.8%) were identified as having avulsed in all 44 primary teeth most frequently the maxillary incisors (89%). Thirty-three fully erupted permanent successors were included in the study, the prevalence of developmental disturbances was 30% (10 teeth). The results showed the risk of developmental disturbances in the permanent successors to be more frequent the younger the age at the time of injury (P = 0.04). Discolouration affected all 10 permanent teeth, but also hypoplasia and horizontal enamel hypoplasia were found. [source]

Gingival fibromatosis and significant tooth eruption delay in an 11-year-old male: a 30-month follow-up

INTERNATIONAL JOURNAL OF PAEDIATRIC DENTISTRY, Issue 4 2005
K. KAVVADIA
Summary. This case report describes the dental management of an unusual case of idiopathic gingival fibromatosis with multiple impacted primary teeth, and the absence of eruption of permanent teeth, in an 11-year-old boy and at the 30-month follow-up. The patient presented with severely enlarged gingival tissues affecting both arches and multiple retained and nonerupted primary teeth. He had already been subjected to localized gingivectomies at the ages of 7 and 9 years. He had no known syndrome and there was no family history of any similar disorder. The patient was treated under general anaesthesia to remove the excessive gingival tissues using apically positioned flaps. During the surgical procedure, over-retained and unerupted impacted primary teeth were extracted in order to facilitate the eruption of the permanent successors. Two years postoperatively, there was no recurrence of the gingival enlargement. Overdentures were then constructed because none of the permanent teeth had yet erupted. Furthermore, preeruptive coronal resorption was detected radiographically affecting the crown of the unerupted 36. Thirty months postoperatively, no recurrence of gingival enlargement was seen, but the permanent teeth had still not erupted. [source]

Root resorption in retained deciduous canine and molar teeth without permanent successors in patients with severe hypodontia

INTERNATIONAL JOURNAL OF PAEDIATRIC DENTISTRY, Issue 3 2001
K. Haselden
Aims. The ability to predict the morbidity of retained deciduous teeth with no permanent successors, a characteristic of hypodontia, would be of considerable value in treatment planning, but is hampered by lack of data. Methods. This problem was studied using 356 orthopantomogram radiographs (OPGs) from the records of 249 patients who had attended a specialist hypodontia clinic, and had retained deciduous teeth with no permanent successors. Due to their clinical importance, canine and molar teeth were chosen for examination. Resorption was assessed subjectively by three experienced clinicians. Results. Un-weighted Kappa values for reproducibility were > 0·8, and for inter-observer error 0·60,0·83. Gender related differences were minimal. Regardless of gender or radiographic age, the lower canines appear to show the least amount of resorption and the upper first molars the most. The upper and lower second molars have particularly unpredictable life spans. Whilst the lower first molars have a predictable life span that is poor, the life span for the upper first molars is slightly worse. Conclusions. Lower canines have a predictable life span that appears to be good, as do upper canines, but of lesser duration than lower canines. Molars have poorer and less predictable life spans. [source]