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PubMedDate not supplied

Simple treatment of ectopic eruption with a triangular wedging spring.

The purpose of this clinical report was to introduce a simple and effective way of performing ectopic eruption treatment utilizing a triangular wedging spring. This consists of 3 helical loops in a triangular shape with 0.018-inch Australian wire. The middle helical loop is made for wedging spring action, while the other 2 helical loops are action arms inserted between the second primary molar and ectopically erupting permanent first molar. In this report, the ectopic eruption case was successfully treated with a triangular wedging spring in 2 months. This clinical report demonstrates that a triangular wedging spring can be utilized as a simple, less irritable, and more effective way of correcting ectopic eruption of the permanent first molar.

Child↗
PubMed1993

The oral surgery/orthodontic interface: 1. Ectopically positioned teeth.

The number of patients seeking orthodontic treatment has increased over the last decade. A proportion of these patients present with minor irregularities due to the so-called 'local causes' of malocclusion, many of which require surgical treatment. Some general dental practitioners have taken up the challenge of correcting these causes and the resulting malocclusion themselves; however, all practitioners must be aware of the treatment options available and the surgical and orthodontic considerations to be taken into account. This will allow informed discussion with patients. In this, the first of two papers, the management of ectopically positioned teeth is discussed.

Cuspid↗
PubMed2006

How a computerized tomography examination changed the treatment plans of 80 children with retained and ectopically positioned maxillary canines.

The purpose of this study was to analyze treatment outcome and treatment planning before and after a computerized tomography (CT) investigation of children with retained and ectopically positioned maxillary canines. Intraoral and panoramic radiographs, computerized tomographs, and, in some cases, lateral head films were taken of 80 children with 113 retained maxillary canines. The incisor roots of 39 of the 80 children had some measure of resorption. Forty-two children with retained maxillary canines also had a space deficiency. Diagnosis and a treatment plan were originally based on extraoral and intraoral photos, study models, the anamnesis, the status on the patient's charts, conventional radiography, and, if available, lateral head films. Approximately one year later, the same examiner drew up a new treatment plan based on the same records but with a supplemental CT examination. The treatment plans of 35 (43.7%) of the 80 children were modified to reflect this new information. Of those patients with root resorption on the incisors adjacent to retained canines, more than half (53.8%) of the treatment plans were altered. Without the CT investigation, 11 children would not have been treated for resorption that had exposed the pulp of an incisor root and 13 who had no root resorption on their incisors would have had one or both lateral incisors extracted. The treatment plans of the latter were changed to nonextraction or extraction of premolars. A CT investigation is an important source of information for treatment planning for children with retained or ectopically erupting maxillary canines.

Child↗
PubMed1986

Long-term periodontal status of labially erupted canines following orthodontic treatment.

Periodontal status was studied at the mesiobuccal, midbuccal and distobuccal aspects of contralateral pairs of canines in 22 postorthodontic patients aged 30 to 51 years with a mean time of 26.4 years (SD, 5.6) out of active treatment. The pretreatment models showed one canine erupting severely to the labial ("ectopic") with a contralateral canine in good arch alignment (control). None of the patients experienced relapse of the "ectopic" canine in a labial direction, and none had missing teeth, malalignment, overhanging restorations or open tooth contacts adjacent to the canines evaluated. Periodontal parameters were examined using a Michigan #0 probe with Williams markings. A nonstandardized light force was used and the measurements were rounded to the nearest millimeter. The results demonstrated statistically significant differences between the canines in probing attachment and bone levels (mean, 0.75; SD, 0.92; P less than 0.01) and width of attached gingiva (mean, 0.50; SD, 1.07; p less than 0.05) at the midbuccal aspects. The reason for these differences could only be speculated upon.

Adult↗
PubMed1984

Treatment of ectopically erupting permanent molars.

Eruption of a first permanent molar ectopically is a common occurrence in any office in which a significant number of children are treated. Approximately 65 per cent of the ectopically erupting molars will self-correct. It is imperative that the dentist closely examine all preschool children to determine the possibility that the condition will occur and follow the child closely to determine the subsequent need for treatment. If clinical treatment is advisable the dentist can use a modified version of the Humphrey appliance to successfully and rapidly correct ectopically erupting molars with relative ease.

Child↗
PubMed1988

Resorption of maxillary lateral incisors caused by ectopic eruption of the canines. A clinical and radiographic analysis of predisposing factors.

Factors predisposing to resorption of adjacent permanent lateral incisors caused by ectopic eruption of maxillary canines were evaluated. The subjects consisted of two groups: one with 40 lateral incisors with resorption caused by ectopic eruption and a control group of 118 ectopic eruption cases with no lateral incisor resorption. The mean age of the children in the two groups differed by only 0.7 of a year and ranged from 10.0 to 15.0 years, covering the normal eruption period of the maxillary canine. Resorption of lateral incisors was three times as common in girls as in boys. The resorption cases showed a more advanced dental development, a more medial canine position in the dental arch, and a slightly more mesial horizontal path of eruption (an average of 10 degrees) than that of the control cases. Factors such as the width of the dental follicle and proclination or distal tilting of the lateral incisor showed no correlation to the resorption. Potential resorption cases are always those in which the canine cusp in periapical and panoramic films is positioned medially to the midline of the lateral incisor. Such situations should be carefully investigated with polytomography if necessary. The risk of resorption also will increase with a more mesial horizontal path of eruption. From 10 years of age or younger, annual clinical examination by palpation of the canine eruption path is recommended. This clinical examination should be supplemented with a stepwise extended radiographic procedure in cases in which ectopic eruption of the maxillary canines is suspected.

Adolescent↗