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At least 415 records · Page 23Linked to original sources
PubMed1992

[Secondary retention of permanent molars. I. Clinical, radiologic and histologic characterization].

The clinical, radiographical and histological aspects of secondary retention in permanent molars were studied in a group of 53 patients with 81 secondarily retained permanent molars. First molars turned out to be affected most frequently. The mean infraocclusion at the patients' first visit was 4.3 mm. After six months, infraocclusion had increased in adolescents. It seemed to be stable in adults. Tilting of adjacent teeth was observed in 39 cases of secondary retention. A solid, clear percussion sound and a partial absence of the periodontal ligament space on radiographs was only noted in less than 20% of the affected molars, while histological examination of 38 removed molars revealed that local areas of ankylosis were present in all cases. During a follow-up period of four years, six new cases of secondary retention were observed in the same population.

Adolescent↗
PubMed1992

[Secondary retention of permanent molars. II. Therapy].

The efficacy of 5 treatment modalities for secondary retention of permanent molars was evaluated in 62 patients with 92 affected molars. The results showed that a prosthetic build up is a proper treatment if secondary retention develops late in or after the growth spurt. In these cases the extent of infraocclusion is slight and relatively stable. If secondary retention starts before the growth spurt, immediate removal of the retained molar followed by orthodontic treatment to close the diastema gives maximal success. When secondary retention develops during the growth spurt, the tooth affected has to be observed at six monthly intervals. In such cases, no active treatment is indicated if the extent of infraocclusion is minor and stable. In all other cases the affected molar should be removed, followed by orthodontic closure of the diastema.

Adolescent↗
PubMedDate not supplied

Calcifying epithelial odontogenic tumor (Pindborg tumor).

We report a clinical case of a 41-year-old female patient affected by a Pindborg tumor located in the left mandibular angle. The accidental detection of the lesion and its frequent relationship with an impacted tooth can difficult its differential diagnosis, mainly with an odontogenic cyst. In spite of the existence of a recurrence rate of 14% after conservative treatment, we think that a quality treatment would require the practice of a block excision including healthy bony margins.

Adult↗
PubMed2002

Epidemiological analysis of oral surgery procedures.

The epidemiological study was conducted to assess oral health of patients referred to the Department of Oral Surgery at Clinical Hospital Center in Rijeka. The distribution of particular diagnoses and surgical interventions in relation to frequency of occurrence was tested. The total of 1,268 patients aged from 5 to 89 years, both sexes, were included in the study. All the patients were treated under local anesthesia. The most common reason for referral to oral surgery was chronic periapical lesion (33.3%), followed by retained root (26.7%), impacted tooth (12.7%), and radicular cyst (8.3%). The majority of patients, residents of Rijeka city area, were treated for the diagnosis of adult periodontitis, while the radicular cysts and hypertrophy of the upper frenulum were more frequent referral diagnoses in patients coming from the areas around Rijeka. Extractions were performed more frequently in patients from Rijeka, while cystectomies with apicectomies and frenulectomies in other patients.

Adolescent↗
PubMedDate not supplied

Early diagnosis and treatment of supplemental mandibular tooth: report of a case.

This report describes a rare case of a supplemental tooth with a morphology similar to a lateral incisor, found in the canine region of the mandible of a 6-year-old male. The purpose of this paper is to report the importance of early diagnosis and treatment during mixed dentition. The treatment was extraction of the primary mandibular left canine soon after the initial diagnosis of the condition to facilitate the spontaneous eruption of the supplemental tooth and his removal. Twenty-nine months after the removal of the supplemental tooth the mandibular left canine was fully erupted into normal position. No complication arose from the presence of this supernumerary and his early diagnosis has been very important for not disrupting the normal erupting or alignment of other teeth.

Child↗
PubMedDate not supplied

Ameloblastic fibroma of the mandible. Report of two cases.

The ameloblastic fibroma (AF)-ameloblastic fibro-odontoma (AFO), is an uncommon benign mixed odontogenic tumor (epithelial and mesenchymal), that represents the 2% of all odontogenic tumors. It usually appears in the mandible and in the posterior segments of young patients without gender predilection, and sometimes is associated with an impacted tooth. The classification of the WHO includes it in the subtype of odontogenic tumors with a defined histologic features. The AF and the AFO are considered as an unique entity as they are variations of the same tumor, only distinct for the presence of an odontoma in the case of the AFO. Surgical conservative treatment with excision followed by curettage seems to be the most appropriate therapeutic option. The objective of this paper is to report two cases of this tumor, to make a brief review of the literature and its differential diagnosis, to analyse its clinical and histologic features and the therapeutic option.

Ameloblastoma↗
PubMedDate not supplied

[Cyst and pseudocyst of oral maxillo-facial region. Clinical and therapeutical considerations].

Oral and maxillo-facial cysts are very common lesions that show different clinical and pathological aspects. The surgical treatment of these lesions is conditioned by many factors such as the lesion dimension, the involvement of vascular and neurological structures, the presence of recoverable teeth into the cyctic area, the conditions of the patient. For these reasons surgical treatment guidelines may greatly diverge in the various cases. There are three different kinds of treatment: cystotomy (Partsch I), cystectomy (Partsch II) and a combination of the two reported surgical treatments: at first Partsch I and in a second time Partsch II. The authors present two cases of maxillo-facial cysts that are characterized by different clinical aspects: a follicular cyst in a male, nine years old, and a retention cyst located in the tongue of a young female. Follicular cyst is a very common lesion of maxillary bones related to an impacted tooth; retention cyst is a rare soft tissue pathology. The analysis of these so different cases permits to formulate many interesting observations about the main aspects of diagnosis, treatment and management of patients affected by maxillo-facial cysts.

Child↗
PubMed2003

Mesiodens--diagnosis and management of a common supernumerary tooth.

Mesiodentes are the most common supernumerary teeth, occurring in 0.15% to 1.9% of the population. Given this high frequency, the general dentist should be knowledgeable about the signs and symptoms of mesiodentes and appropriate treatment. The cause of mesiodentes is not fully understood, although proliferation of the dental lamina and genetic factors have been implicated. Mesiodentes can cause delayed or ectopic eruption of the permanent incisors, which can further alter occlusion and appearance. It is therefore important for the clinician to diagnose a mesiodens early in development to allow for optimal yet minimal treatment. Treatment options may include surgical extraction of the mesiodens. If the permanent teeth do not erupt in a reasonable period after the extraction, surgical exposure and orthodontic treatment may be required to ensure eruption and proper alignment of the teeth. In some instances, fixed orthodontic therapy is also required to create sufficient arch space before eruption and alignment of the incisor(s). Early diagnosis allows the most appropriate treatment, often reducing the extent of surgery, orthodontic treatment and possible complications. This paper outlines the causes and modes of presentation of mesiodentes, and presents guidelines for diagnosis and management of nonsyndromic mesiodentes.

Humans↗
PubMed2003

[Treatment of torsion abnormalities of central upper incisors caused by super-compact teeth].

A super-compact retained tooth is often responsible for rotation of a tooth round its axis; the retained tooth should be removed after preliminary x-ray examination of the site of abnormality. A great variety of etiopathological factors are responsible for the abnormality, and hence, the approaches to the choice of treatment are numerous. Rotation of teeth during orthodontic treatment involved stretching and strain of connective tissue fibers, which are not intended for rearrangement, and therefore the results are not stable. A long period of retention is needed for adaptation of tissues to a new position of the tooth.

Child↗
PubMed2004

[An example of "leveling extraction" for repair of the 21st tooth supraposition].

A supercomplect retained tooth, situated under the 21st tooth, was removed in order to eliminate the supraposition (vestibular position) of the 21st tooth under conditions of lack of place in the dental arch. The 14th tooth on the contralateral side of the jaw was removed in order to maintain the symmetry and order of the anterior part of the maxillary dental arch and for creating place for the 21st tooth. Further transposition of the 13th tooth to the place previously occupied by 14th tooth, 11th tooth instead of 12th tooth, and establishment of the 21st tooth into correct position in the dental arch were carried out using orthodontic devices.

Adolescent↗
PubMedDate not supplied

Aberrant root formation: review of root genesis and three case reports.

The mechanism of root formation and tooth eruption is a complex process which is not fully understood. Prior to a tooth emerging into the oral cavity, root genesis is initiated by derivatives of the enamel organ. The dental follicle mediates an eruption pathway allowing for movement of the developing tooth in a coronal direction. As the tooth moves towards the oral cavity, root formation occurs passively in the resulting space. Failure of the enamel organ and dental follicle to properly coordinate may result in complications in the eruption process. This clinical report presents 3 cases of isolated, unerupted teeth with dysmorphology of the roots. The process of root development and tooth eruption is also briefly reviewed.

Adolescent↗
PubMed2004

Calcifying epithelial odontogenic (Pindborg) tumor. A clinical case.

Calcifying epithelial odontogenic tumor (CEOT), Pindborg tumor, is a rare benign odontogenic neoplasm representing about 0.4-3% of all odontogenic tumors. This tumor more frequently affects adults in an age range of 20-60 years, with a peak of incidence between 40 and 60 years. About 190 cases of CEOT have been reported in the dental literature. Fifty-two percent of cases of CEOT is associated with a tooth impacted and/or displaced by the tumor. The primary CEOT has a recurrence rate of 10-15%, after total excision, and its malignant transformation is a very rare occurrence. The authors report a case of primary intra-osseous CEOT, embedding the mandibular right second molar, in a 24 year-old male. Radiographs showed a well-defined unilocular osteolytic lesion, swelling and reabsorbing the mandible and displacing the inferior alveolar nerve. It was possible to perform conservative surgical treatment consisting of the enucleation of the tumor together with a portion of tumor-free bone cavity margin and the debridement of the inferior alveolar neuro-vascular bundle, which was surrounded by a tumor capsule-like structure. The postoperative histological examination of the tumor revealed typical benign features. The differential diagnosis and work-up of the tumor treatment are discussed in relation with its histological typing and localization in the jaws.

Adult↗
PubMed2004

Orthodontic and periodontal considerations in managing teeth exhibiting significant delay in eruption.

AIM: Significant delay in tooth eruption may be observed in many orthodontic patients. This delay may lead to complications, such as devitalization, ankylosis, external root resorption, injury to the adjacent teeth, and mucogingival problems. These complications may result in prolonged treatment time, esthetic deformities, damage to the periodontal tissues, and tooth loss. This report investigates the special considerations needed in treating such cases. METHODS: Combined orthodontic and surgical treatment can be used in managing teeth exhibiting significant delay in eruption. RESULTS: A high rate of success can be achieved in terms of esthetics, occlusion, and periodontal health. CONCLUSION: Nontraumatic surgery, adequate control of gingival inflammation, and use of minimal orthodontic forces may ensure a higher percentage of success and prevention of problems associated with teeth exhibiting significant delay in eruption.

Dental Occlusion↗