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Results for “Tooth Eruption, Ectopic”

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At least 757 records · Page 42Linked to original sources
PubMed1996

Ectopic eruption of maxillary first permanent molars in children with cleft lip.

The purpose of this study was to determine the incidence of ectopic eruption of the maxillary first permanent molars in cleft patients. Panoramic radiographs of 70 Brazilian Caucasian children, 6 to 8 years old and with complete unilateral cleft lip and alveolus, were assessed. Fourteen of 70 patients (20%) presented with ectopic eruption of one or both maxillary first permanent molars. Sixteen of 19 ectopically erupted molars (85%) were of a reversible type of ectopic eruption and 3 (15%) were irreversible. No significant differences were found between sexes or between cleft sides.

Alveolar Process↗
PubMed1990

Transpositions of maxillary teeth.

Transposition of teeth is a rare and special type of ectopic eruption where two contiguous teeth are found occupying each other's respective normal positions. Nine patients with transposed maxillary teeth are reported. The literature on transpositions, especially on the theories regarding the aetiology, is reviewed.

Adult↗
PubMed1997

Ectopic eruption of a mandibular lateral incisor.

This article illustrates an unusual situation, the ectopic eruption of the mandibular permanent lateral incisor, through the case report of a patient with a Class I malocclusion at an early stage of the mixed dentition. The article is focused on the diagnosis of the ectopic eruption and advocates treatment with an active orthodontic therapy at the early stage of the mixed dentition, before the eruption of the permanent cuspid.

Child↗
PubMed1995

An alternative treatment for the severely resorped maxillary lateral incisor: a sequela of ectopic eruption.

At times dental crowding, maxillary arch inadequacy, or an abnormal lingual or horizontal position restricts the eruption of the maxillary cuspid. This ectopic eruption can cause the canine to compress the blood supply to the periodontal tissues of the adjacent lateral incisor. If undiagnosed and untreated, physiological and chemical changes are induced, and the lateral root undergoes resorption. When the resorption is severe enough to endanger the retention of the lateral, an endeosseous stabilizer can be placed through the root and extended into the bone to stabilize the tooth artificially. Two cases demonstrate the technique and success of such treatment.

Adolescent↗
PubMed1990

Transposed premolars, canines, and lateral incisors.

Transposed teeth are not uncommon in dental practice nor are those in ectopic eruption patterns. Such teeth may be managed in various ways. Even with close observation, their course may be unpredictable; indeed, it may be necessary to change the treatment plan during treatment. Several case histories illustrate these situations.

Adolescent↗
PubMed2001

The use of the Index of Orthodontic Treatment need (IOTN) in a school population and referred population.

The aim of this study is to assess the need for orthodontic treatment in a Turkish school population and a group of population referred for orthodontic treatment. The study groups were 250 school children, 11-14 years of age, and 250 patients, 11-14 years of age, referred to the department of orthodontics. The Index of Orthodontic Treatment Need (IOTN) was used by two examiner in order to estimate the treatment need. The differences between the IOTN values for the boys and girls were also not statistically significant in both groups. When the dental health component of IOTN is considered, 38.8 per cent of Turkish school population showed great need treatment, 24.0 per cent moderate need treatment and slight or no need was 37.2 per cent. On the other hand, the referred population represented an 83.2 per cent great need treatment, 12.0 per cent moderate need treatment, 4.8 per cent no need treatment according to the DHC. The AC of IOTN in school population resulted in 4.8 per cent great need, 4.8 per cent moderate need, 90.4 per cent no need. These percentage were 36.8 per cent great need, 17.6 per cent moderate need, 45.2 per cent no need in referred population. Grade 8 was 28.8 per cent out of the 36.8 per cent great need percentage in referred population. Therefore, it can be concluded that the ectopic canines were the driving factor for the referred population.

Adolescent↗
PubMedDate not supplied

Effect of familial hypophosphatemic rickets on dental development: a controlled, longitudinal study.

Familial or X-linked hypophosphatemic rickets (XLHR) is the most common type of rickets in developed countries today. While the dental manifestations of rickets are well reported, there is little information regarding its relationship to dental development and other dental anomalies. This investigation studied the rate of dental development and associated dental anomalies in 19 XLHR subjects compared with 38 race-, age-, and sex-matched control children. The results showed that in both XLHR and control children, no significant differences existed in dental age compared with the respective chronological age, indicating that rickets did not affect the rate of dental development. Longitudinal growth curves of seven XLHR and matched control children substantiated that relationships of dental to chronological ages were comparable in both groups. Male XLHR subjects showed significantly increased tendency for dental taurodontism with mean Crown-Body (CB):Root (R) ratio of 1.1 compared with 1.0 in females and 0.8 in controls (P < 0.02). Male XLHR children also showed significantly increased prevalence (50%) of ectopic permanent canines compared with control children (8%, P < 0.01).

Adolescent↗
PubMed2005

Maxillary premolar resorption by canines: three case reports.

Three unusual cases of maxillary premolar root resorption are reported. Three teenage patients were referred to the orthodontic department for management of ectopic maxillary canines. Radiographic examination revealed unilateral premolar root resorption in all three patients. This represents an unusual finding. Whereas the prevalence of maxillary lateral incisor root resorption secondary to palatally ectopic canines has been reported, the prevalence of premolar root resorption is unknown. This report discusses the findings in the context of the available literature. The postulated aetiology and the need for early diagnosis are highlighted.

Adolescent↗
PubMed1999

A comparison of autotransplantation and orthodontics in a case exhibiting two ectopic upper cuspids.

Bilateral severely ectopic maxillary cuspids were treated differently on each side. On one side the ectopic cuspid was moved into position orthodontically, and on the other, the ectopic cuspid was positioned by autotransplantation. The orthodontic positioning took a long time and the tooth exhibited root resorption. Treatment time for the autotransplantation positioning was far quicker, and there was no resorption nor were there any other side effects.

Anodontia↗
PubMed2000

Incisor root resorptions due to ectopic maxillary canines imaged by computerized tomography: a comparative study in extracted teeth.

The purpose of the study was to analyze the ability of computerized tomography (CT) scanning to discriminate maxillary incisor root resorptions caused by ectopically erupting canines. Seventeen maxillary incisors were radiographed in vivo by CT scanning. Contiguous transverse CT scans with a slice thickness of 2 mm were exposed perpendicular to the long axis of the lateral incisors and through the crown of the adjacent, ectopically positioned maxillary canine. Each scan was analyzed and the resorptions on the roots of the laterals were graded according to the maximum depth of the cavity. After the lateral incisors were extracted they were clinically inspected, photographed in different light settings and views, and probed at the contact area between the laterals and the canines. The assessment of the extent of resorption in 4 stages on the CT images compared with the in vitro observations of the extracted roots showed a high degree of agreement for the extent of loss of root substance for all teeth. We conclude that CT scanning performed with good technique accurately reveals tooth root resorption. The presence and influence of the inherent artifacts of tooth root resorption on CT scans are discussed.

Artifacts↗
PubMed1983

Ectopic eruption of the maxillary first permanent molar: etiologic factors.

For clinical handling, it is important to determine whether any etiologic factors, alone or in combination, are of more importance than others in causing ectopic eruption of a maxillary first permanent molar. Etiologic factors involved in ectopic eruption of maxillary first permanent molars were investigated in 129 children with a mean age of 8.6 years. Ninety-two children (fifty-eight boys and thirty-four girls) had ectopic eruption and thirty-seven children served as controls and were matched by age and sex. Two types of ectopic eruption could be distinguished: a reversible type in which the permanent molar frees itself and an irreversible type in which the permanent molar remains in a locked position. Measurements were made on lateral head films, orthopantomograms, and dental casts. For 104 subjects all variables could be measured. Data was analyzed by discriminant analysis. Children with irreversible ectopic eruption had significantly larger permanent molars and a more pronounced mesial angle of eruption. A tendency toward a shorter maxilla was also found. No significant difference was found between sides with reversible ectopic eruption and sides with normal eruption. From the discriminant analysis between groups and all variables investigated, 90.7 percent of the cases could be correctly classified into groups. This study indicates that sufficient space may be gained for the premolars if the mesial tipping of the first molar is corrected, despite the tendency toward a shorter maxilla and larger than normal permanent molars.

Cephalometry↗
PubMed2002

Nasal teeth: report of three cases.

The ectopic eruption of the teeth into the nasal cavity is a rare phenomenon. We report cases: two involving the nasal cavity and one involving the hard palate and complicated by Aspergillus rhinitis. We describe the clinical and radiologic presentation of these cases and discuss their etiology, complications, diagnosis, and treatment.

Aspergillosis↗
PubMed2003

Forestadent Young Specialist Prize (1999).

This paper describes the clinical orthodontic treatment of the three cases that were awarded the 1999 Forestadent Young Specialist Prize. There are two Class II division 1 cases treated by different treatment modalities and a Class II division 2 case complicated by a palatally ectopic maxillary canine. These case reports demonstrate the three main treatment modalities available to the orthodontist for treating skeletally-based malocclusions, i.e. growth modification, orthodontic camouflage, and a combined surgical-orthodontic approach.

Adolescent↗
PubMed2000

Prevalence of intranasal ectopic teeth in children with complete unilateral and bilateral cleft lip and palate.

OBJECTIVE: The objective of this study was to determine the prevalence of ectopic eruption of intranasal teeth. DESIGN: This was a retrospective study, where records of children with repaired cleft lip and palate were analyzed. SETTING: The study was conducted at a large craniofacial center, the Hospital for Rehabilitation of Craniofacial Anomalies, USP, Bauru, São Paulo, Brazil. SUBJECTS: The sample consisted of 815 records from patients with bilateral cleft lip and palate (BCLP) and 1,495 records from patients with unilateral cleft lip and palate (UCLP). The age of the subjects was 5 to 10 years old and the groups included both males and females. RESULTS: The results showed that 0.61% of the children with BCLP and 0.40% of those with UCLP had an intranasal tooth. The prevalence of an intranasal tooth for the whole group was 0.48%, and it appeared to be more common in females.

Brazil↗
PubMed1984

[Case of a rare maxillary tumor: osteocementofibroma].

A 17-year-old young girl presented with a rare maxillary tumor, an osteocementoblastoma, which from the ectopic type of position of the wisdom tooth had apparently been present for many years pathologic findings are reported. Post-operative course was normal but regular follow-up is necessary because of the tendency for recurrence of the few cases reported in the literature of this benign tumor.

Adolescent↗
PubMed2006

Endoscopic removal of a dentigerous cyst producing unilateral maxillary sinus opacification on computed tomography.

We report the case of a 14-year-old girl who was referred to us with a 2-year history of abnormal panoramic dental x-rays. Computed tomography of the paranasal sinuses demonstrated a left unilateral maxillary sinus opacification that had been produced by an ectopic molar. The tooth was removed via an endoscopic approach rather than with a traditional Caldwell-Luc procedure. A nasal endoscope was used to create a middle meatal antrostomy and deliver the tooth and its cystic contents. The patient recovered without complications, and she exhibited no signs of recurrence at the 2-year follow-up.

Adolescent↗
PubMedDate not supplied

Eruptive malpositioning of the mandibular permanent lateral incisors: three case reports.

Ectopic eruption of the mandibular permanent lateral incisors involving the loss of the adjacent primary canines is not uncommon, yet the extreme distalization and transposition of such teeth (partial or true) has been reported infrequently. Three cases that illustrate various anomalous eruption-exfoliation patterns are presented. Theories that attempt to explain the etiology of anomalous eruption positions are discussed. However, the multifactorial process of growth and development makes it difficult to identify specific primary etiological factors. Treatment options also are discussed and illustrated, with emphasis on early orthodontic intervention for optimal results.

Child↗