Adjacent Permanent Teeth Research Articles

A retrospective analysis of the characteristics, treatment and follow-up of 26 odontomas in Greek children

Odontomas represent the most common type of odontogenic jaw tumors among patients younger than 20 years of age. Clinically, they are often associated with eruption failure of adjacent permanent teeth, and are classified as compound and complex. The aim of the present retrospective study was to present the characteristics, treatment approach and outcome of odontomas in Greek children, over a ten-year period. Twenty six patients, 2 to 14 years of age (mean 9.3 years), with odontomas treated during the years 1999-2008 at the Department of Oral & Maxillofacial Surgery of a Children's Hospital, were included in the study. Data from patients' files were retrieved and they were recalled for review. Odontomas were equally distributed in the maxilla and mandible and 42.3% of them were located in the anterior maxilla. Of the odontomas, 80.7% were related to disturbances in tooth eruption. Bone expansion was observed in 65.3% of the cases. All odontomas were surgically removed, and related impacted permanent teeth were either left to erupt spontaneously, orthodontically guided into occlusion or were removed. Orthodontic intervention appeared to be necessary in older children, while in younger children spontaneous eruption was frequent. In the present study, odontomas were associated with unerupted or impacted teeth. Radiographic examination was essential to verify the presence of the tumor and early removal prevented tooth eruption failure and disturbances in a majority of the cases.

Unusual teeth transpositions: two case reports

Tooth transposition is a rare dental anomaly that is characterized by the interchanged position of two adjacent permanent teeth in the same quadrant or ectopic eruption of one tooth in the place of another. This article presents two case reports of transpositions. In the first case, a 21-year-old man presented with a left maxillary canine to molar site transposition. Radiographs showed that the canine was transposed completely. In the second case, a 35-year-old man presented with a right mandibular second premolar that had erupted between the first and second molars. Radiographs showed that the second premolar was positioned between the first and second molars. Maxillary canine to first molar site transpositions are extremely rare. To date, just eight cases have been reported in the English literature. Early loss of the first permanent molar may trigger distal migration of a developing canine bud. A mandibular second premolar erupting between the first and second molars is also a rare position anomaly that has not been reported in the English literature.

Perawatan Diastema Akibat Mesiodens pada Anak Usia 9 Tahun

Mesiodens is a supernumerary tooth which is commonly found in the midline of the maxilla between the two central incisors. Supernumerary teeth are more often found in permanent than in primary teeth. Mesiodens may cause clinical disorders, such as delayed eruption or malposition of adjacent permanent teeth. Both conditions frequently result in an irregularity of developing occlusion. This paper will report mesiodens in a 9 years old girl who complained of space in the maxilla anterior teeth with anterior corssbite. The treatment included extraction of mesiodens with closing diastema and correction of the anterior crossbite with a simple orthodontic appliance. It was concluded that treatment is important to prepare space for eruption of maxillary lateral incisors, correcting diastema in the region of anterior maxilla and repairing anterior crossbite.

Management of Mesiodens and ectopically Erupted Central Incisor

ABSTRACT Pediatric dentists come across children and developing malocclusion at the earliest, early recognition and interception could avoid long-term laborious orthodontic treatment. Mesiodens are the most common supernumerary teeth, in the central region of the premaxilla, between the two central incisors, which may be the cause for a variety of irregularities in the developing occlusion, in particular, can lead to the impaction or ectopic eruption of adjacent permanent teeth, in the most esthetically important zone. Presented here is a case of management of ectopically erupted right permanent central incisor caused due to supernumerary tooth. How to cite this article Nagaveni NB, Poornima P, Valsan A, Mathew MG. Management of Mesiodens and ectopically Erupted Central Incisor. CODS J Dent 2016;8(1):49-53.

Mandibular Lateral Incisor-Canine Transposition: A Case Report

Tooth transposition is a rare dental anomaly which is characterized by an interchange in the position of two adjacent permanent teeth on the same side of the dental arch. Tooth transpositions occur less often in the mandibular arch than in the maxilla and with less variety. Early diagnosis and detection of a developing transposition is based on both clinical and radiographic examination. When detected early, interceptive treatment may resolve the developing problem. This paper discusses a patient who presented with a mandibular permanent lateral incisor-canine transposition.

Extraoral inverted teeth eruption: a case report

A 14-year-old female presented with extraoral inverted eruption of left mandibular permanent molars 18 and 19 at the lower left inferior border of the mandible. Both the teeth started erupting 1 year after an extraoral surgical intervention for a discharging sinus 6 years ago. The subsequent eruption to the extraoral position of the permanent molars at the inferior border of mandible may be the result of the previous surgical procedure or pathology related to the abnormally positioned teeth. This case presents an infrequent complication affecting the adjacent permanent teeth.

Maxillary bone growth and implant positioning in a young patient: A case report: Enzo Rossi, Jens O. Andreasen. Int J Periodontics Restorative Dent 2003;23:113-9

The literature supports the efficacy of osseointegrated implants for partially edentulous patients, but care must be exercised in adolescents with incomplete bone formation. Implants do not follow the normal growth of the jaws, and they behave like ankylosed teeth. They may also interfere with the normal growth of the alveolar process and jeopardize the germs of the adjacent permanent teeth or alter eruption. This case report analyzes the unfavorable clinical and radiographic findings of a single-tooth replacement in a young male over a 15-year period. Reprinted with permission of Quintessence Publishing

Does the canine dental follicle cause resorption of permanent incisor roots? A computed tomographic study of erupting maxillary canines.

We performed computed tomography (CT) on 107 children and adolescents aged 9-15 years with 176 unerupted maxillary canines (152 erupting ectopically and 24 erupting normally) to determine whether there is an association between widened dental follicles of the maxillary canines and resorption of the adjacent incisors during eruption. Contiguous axial (transverse) CT scans were obtained through the maxilla in the region of the canines. The width and shape of the dental follicles were recorded, as were any contacts between the follicles and the crowns of the maxillary canines and neighboring incisors. Fifty-eight lateral incisors (38%) and 14 central incisors (9%) had some type of root resorption. The position of the maxillary canine in relation to the root of the lateral incisor varied greatly, as did the width and shape of the canine dental follicle. Follicle width ranged from 0.5 mm to 7.0 mm. The mean +/- SD width of dental follicles was, on average, larger for the ectopically positioned canines (2.9 +/- 0.8 mm) than for the normally erupting canines (2.5 +/- 0.8 mm) (P < or = .01). We found that during eruption, the follicle of the erupting maxillary canine frequently resorbed the periodontal contours of adjacent permanent teeth but not the hard tissues of the roots. We concluded that the dental follicle did not cause root resorption of permanent teeth. Resorption of neighboring permanent teeth during maxillary canine eruption was most probably an effect of the physical contacts between the erupting canine and the adjacent tooth, active pressure during eruption, and cellular activities in the tissues at the contact points, all of which are part of the eruptive mechanism. The findings also confirm an association between root resorption of deciduous canines and the dental follicles of erupting permanent canines.

Impacted supernumerary teeth: a survey of 50 cases

Supernumerary teeth are considered one of the most significant dental anomalies during the primary and early mixed dentition stages. A total of 50 patients, ranging in age from 16 months to 17 years, were studied before, during, and after the surgical removal of their supernumerary teeth. Early removal of such teeth is recommended if they impede the eruption of adjacent permanent teeth, appear inverted or rudimentary, or if they are associated with certain pathological conditions. Complications associated with early removal are infrequent and seem minor in nature.

Arch Size Analysis and Tooth Size Prediction

We have predicted, within certain limits, the arch space currently available and the amount of permanent tooth material which is to be accommodated. It should be emphasized, however, that other considerations are vital to the treatment plan. If the existing dental occlusion is favorable and if space is adequate, then periodic examination to follow the course of growth and development may be all that is required to insure a favorable adult dental occlusion. In other instances some form of orthodontic treatment may be advisable. The most favorable juncture at which to institute orthodontic treatment depends upon the particular condition which is present. Some of the irregularities commonly seen are (1) labial or lingual tipping of lower incisors, (2) malrelationship of permanent molar teeth, (3) premature loss of primary teeth which predisposes to unfavorable uncontrolled drift of adjacent permanent teeth, (4) deep overbite cases, and (5) extremely large overjet cases. Among these conditions just enumerated, there are cases which may be materially benefited by treatment during the mixed dentition stage, while treatment of other conditions should be delayed until all the permanent teeth erupt. The dentist should leave the decision of when to begin treatment with the orthodontist who will ultimately be charged with the responsibility of orthodontic treatment. Too often the referral of a patient to the orthodontist is delayed until a relatively simple case becomes quite complex. Early referral of those cases which are known to be orthodontic problems places the responsibility where it should be, with the orthodontist, and insures the patient of the best service available.