Association Between Odontoma and Impacted Teeth.

Odontoma is considered to be the most common odontogenic tumor of the oral cavity. Most odontomas are asymptomatic and are discovered during routine radiographic investigations and can cause disturbances in the eruption of the teeth, most commonly delayed eruption or deflection. By a retrospective study design, demographic and clinical data regarding patients who presented odontomas from year 1995 to 2015 were obtained in order and the influence of active therapy on the dentition and on the treatment of impacted teeth was analyzed. Forty-five patients (mean age 14.2 years) with 29 complex and 16 compound odontomas were included in this retrospective study. Initial symptoms were delayed eruption of permanent teeth (n = 25), pain (n = 6), swellings (n = 4), and no symptoms (n = 10); 31 patients were discovered by incidence, all of them via panoramic radiographs. The mandible/maxilla ratio was about 2:1 (31/15). Thirty-two out of 45 odontomas were in close proximity of at least 1 tooth (n = 21 at incisive). A total of 12 teeth were extracted (complex: n = 8; compound: n = 4). Of the nonextracted teeth, 33 teeth were displaced and retained. Of those, 29 teeth were aligned through orthodontic-surgical approach and 4 teeth erupted spontaneously after surgery during the follow-up period. An early detection of odontoma is more likely an accidental radiological finding, hence the need for routine radiographic analysis should be emphasized. Early diagnosis of odontomas in primary dentition is crucial in order to prevent later complications, such as impaction or failure of eruption of teeth.

Elodontoma in Two Guinea Pigs.

Elodontoma was diagnosed in two pet guinea pigs, one involving a maxillary premolar tooth and the other affecting a mandibular incisor tooth. Diagnostic imaging, including radiographs, computed tomography, and oral endoscopy was performed in order to quantify dental disease. Diagnostic imaging was also used to guide treatment of acquired dental disease, which included intraoral restoration of normal occlusal plane and tooth extraction using an extraoral approach. These are the first histologically confirmed cases of elodontoma in guinea pigs.

Odontomas and supernumerary teeth: is there a common origin?

The aim of the present work is to analyze all scientific evidence to verify whether similarities supporting a unified explanation for odontomas and supernumerary teeth exist. A literature search was first conducted for epidemiologic studies indexed by PubMed, to verify their worldwide incidence. The analysis of the literature data shows some interesting similarities between odontomas and supernumerary teeth concerning their topographic distribution and pathologic manifestations. There is also some indication of common genetic and immuno-histochemical factors. Although from a nosological point of view, odontomas and supernumeraries are classified as distinct entities, they seem to be the expression of the same pathologic process, either malformative or hamartomatous.

Management of multiple sequelaes in permanent dentition: 3 years follow-up.

A 12-year-old patient with multiple sequelaes of permanent dentition due to trauma in primary dentition at the age of 8 months, is presented. Clinical and radiographical examinations revealed aesthetical defects, crown-root malformations (#21), hypoplasia (#12, #22), tooth transposition (#13) and odontoma-like malformation (#11). The performed conservative, endo-surgical and prosthetic treatment to gain back the aesthetic and function is reported.

Developmental dental alterations in permanent teeth after intrusion of the predecessors: clinical and microscopic evaluation.

This case report describes the management of developmental dental alterations in permanent dentition as a consequence of severe intrusive luxation in its predecessors in a child of 2 years. At 10 years of age, this patient was referred for consultation due to lack of permanent maxillary right central and lateral incisors. Radiographic examination revealed impaction of hypoplasic permanent maxillary central incisor, absence of the lateral incisor and compound odontoma in region of the permanent maxillary lateral incisor. The odontoma was surgically removed and unerupted central incisor was placed in orthodontic traction over a period of 8 months. The central incisor presented with abnormal shape and was restored with composite resin. Odontoma histologic analysis was carried out through Hematoxylin and Eosin coloration and Scanning Electron Microscopy. Cement and osteocement formations were found in soft tissue, as well as some irregularly distributed dentine islands of tooth-like structures, indicative of compound odontoma. We followed up this patient for 5 years and orthodontic management was successfully performed for correct alignment of the maxillary right central incisor impacted by compound odontoma.

Simultaneous occurrence of compound odontoma and arrested root formation as developmental disturbances after maxillofacial trauma: a case report.

Traumatic injury to a primary tooth and/or a bone fracture has the potential to damage the underlying permanent tooth germ which may disturb its development. The extent of the malformation depends on the developmental stage of the permanent tooth and the intensity of the trauma. The presence of infection may be a predictive factor for these abnormalities. Open surgical procedures can also potentially cause impaction and developmental disturbances. Several developmental alterations such as discolouration, hypoplasia, crown dilaceration, root angulation or dilaceration, sequestration of permanent tooth buds and disturbance in eruption have been reported in permanent teeth after trauma. However, odontoma-like malformations and partial or complete arrest of root formation are rare complications developed after trauma. This article presents a rare case with simultaneous occurrence of an odontoma-like malformation and complete and partial arrested root formations as the results of maxillofacial trauma. Almost all pediatric fractures must be managed with closed reduction as much as possible. However, if it is necessary to perform an open reduction, careful attention must be paid during placement of the osteosynthetic plates and screws; and tooth bud development must be followed periodically.

Bilateral complex odontomas: a rare complication of external mandibular distraction in the neonate.

BACKGROUND: The authors present an unusual complication of external mandibular distraction in a child with bilateral complex odontomas in the posterior mandible. CLINICAL REPORT: The patient is a 4-year-old girl with a history of micrognathia, glossoptosis, and respiratory distress (Pierre-Robin sequence) treated with neonatal external mandibular distraction. She was referred to our service with bilateral amorphic radio-opaque masses in the body of the mandible. CONCLUSIONS: The etiology of odontomas is uncertain, but different theories exist, such as local trauma, infection, family history, or spontaneous genetic mutation. After severe intrusion injuries to primary teeth, odontomalike malformations have been known to occur in the underlying permanent teeth later in life. This case highlights that externally placed distractors carry greater potential for injury to internal structures of the mandible owing to the unpredictability of placement.

Odontomas in Peromyscus leucopus.

A colony of Peromyscus leucopus was established 15 years ago from animals trapped in the deciduous forest at Argonne National Laboratory, Argonne, Illinois. A roentgenographic survey of the skeletons of 189 of these untreated animals dying during a 13-month period disclosed 48 odontogenic growths in 21 of the mice. These growths were diagnosed on histopathologic examination as complex odontomas, the incidence of which was higher in males than in females. In this relatively small sample, these benign tumors appeared to be associated with youth rather than old age.

Natural course of jaw lesions in patients with familial adenomatosis coli (Gardner's syndrome).

Twenty-three patients suffering from familial adenomatosis coli (FAC) were followed for an average of 7 years (0.11-16.11 years). In 22 patients, jaw lesions including osteomas and/or odontomas were present at the first examination. In 12 patients, some changes occurred; that is, the number and size of the lesions increased. These findings indicate that changes of jaw lesions in FAC patients occur gradually even in adulthood.

Intrusion injuries of primary incisors. Part III: Effects on the permanent successors.

Intrusion injuries of the primary dentition are highly associated with developmental disturbances of their successor teeth. The age of the child at the time of injury, the direction and severity of the intrusion, and the presence of alveolar bone fracture are important variables influencing the effect of primary tooth intrusion on the developing permanent germ. The developmental defects of the permanent successor tooth range from mild alteration in enamel mineralization to severe sequestration of the developing germ. This article will review the developmental anomalies of the permanent incisors induced by intrusion injuries of their predecessors.

Gardner's syndrome--the importance of early diagnosis: a case report and a review.

Gardner's syndrome (familial polyposis coli) is a genetic condition characterised by colonic polyps that carry a 100% risk of malignancy if untreated. Early diagnosis, in which an astute and knowledgeable dentist can play an essential role, is therefore of paramount importance. The presence of multiple unerupted teeth provides the dentist with a major pointer to the possible presence of this disease, which may be provisionally diagnosed on the detection of two other obvious features, namely osteomas and cutaneous lesions. This fact is clearly illustrated by the accompanying case report. Extracolonic manifestations increase the morbidity and make treatment more difficult. The presence of large desmoid tumours may be a serious complicating factor. Gardner's syndrome may be accompanied by adenomas of the stomach and duodenum and very rarely by malignant tumours of the central nervous system. Regular surveillance by means of colonoscopies must be carried out on all individuals suspected of having the disease in order to implement timeous life-saving prophylaxis.

An idiosyncratic post-traumatic tetrad: compound odontome, dentigerous cyst, impaction, and double-dilaceration.

OBJECTIVE: This report describes the case of a 13-year-old patient who experienced traumatic intrusion of the primary maxillary right central incisor and subsequently suffered an atypical tetrad, comprising of an unerupted compound odontoma associated with a dentigerous cyst, and an impacted, doubly dilacerated permanent maxillary right central incisor; however, the high interconnectivity of the occurrence of four pathologies together is unusual has not previously been reported. SUMMARY: The pathologies were detected 7 years after trauma; surgical removal of odontome along with the dentigerous cyst was performed, followed by orthodontic extrusion of the impacted double-dilacerated permanent central incisor. The 18-month follow-up shows no pathology, no gingival recession, and normal probing depth.

Odontoma compuesto. presentación de un caso / Odontoma compound. presentation of a case

Se presentó el caso clínico de un niño de 8 años de edad, que acude a consulta de Estomatología del Policlínico "Mártires de Jamaica", del municipio Manuel Tames, de la provincia Guantánamo, acompañado de la madre preocupada por la no erupción del diente 21. Al examen clínico se observó ausencia clínica del 21 con espacio para su ubicación con ligero aumento de volumen en el fondo del surco vestibular a nivel de la zona de consistencia dura a la palpación. Se indicó radiografía panorámica observándose imagen radiolúcida con numerosas formaciones radioopacas en su interior que asemejan estructuras dentarias y una banda radiolúcida en su periferia que presuntivamente se diagnosticó como un odontoma compuesto, se remite al segundo nivel de atención para excéresis y diagnóstico definitivo. Se discuten algunas características de su etiología, diagnóstico y tratamiento(AU)

It was presented the clinical case of an 8-year-old boy, who was attended in the clinic of "Mártires de Jamaica" Polyclinic, in Manuel Tames municipality of Guantanamo province, accompanied by the mother concerned about the non-eruption of tooth 21 .On clinical examination, was observed absence of tooth 21 with space for its location with slight increase in volume at the bottom of the vestibular sulcus at the level of the area hard to palpation. Panoramic x-ray is indicated, with a radiolucent image with numerous radio opaque formations that resemble dental structures and a radiolucent band in its periphery presumptively diagnosed as a compound odontoma. It is referred to the second level of attention for excresis and definitive diagnosis. Some characteristics of its etiology, diagnosis and treatment were discussed(AU)

Odontoma compuesto: revisión de la literatura y reporte de un caso con 40 dentículos / Compound odontoma: a review of the literature and report of a case involving 40 denticles

El odontoma compuesto es un tumor benigno odontogénico conformadopor varios dentículos o dientes rudimentarios los cuales se encuentran conformados de tejido dental organizado. Su etiología no está biendefi nida pero se atribuye a traumatismos durante la primera dentición, así como a procesos infl amatorios o infecciosos, anomalías hereditarias o alteraciones en el gen de control del desarrollo dentario. Su presencia se encuentra entre los tres tumores odontogénicos más frecuentes, en diferente orden según el autor que se consulte. Está relacionado por logeneral con una alteración en la erupción o malposición dental. Tiene predilección en hueso maxilar, frecuentemente asintomáticos, se caracterizan por un crecimiento lento, diagnosticándose de forma casualmediante exámenes radiográfi cos de rutina entre la segunda y terceradécada de la vida. En este estudio se presenta el caso de un pacientefemenino de 14 años de edad, con presencia de un odontoma compuestode 40 dentículos, en la región parasinfi siaria izquierda, tratado medianteenucleación, y colocación de injerto óseo.

The compound odontoma is a benign odontogenic tumor composed ofseveral denticles or rudimentary teeth made up of organized dentaltissue. Its etiology is not well defi ned but is attributed to trauma duringthe fi rst dentition, as well as to infl ammatory or infectious processes, inherited abnormalities, odontoblastic hyperactivity or alterations in the gene that controls tooth development. It is among the 3 mostcommon odontogenic tumors, though its ranking among these varies depending on the author consulted. It is usually associated with analteration in the eruption or malposition of teeth. It has a predilection for the maxillary bone, and is often slow-growing and asymptomatic. Odontomas are diagnosed incidentally during routine X-ray examinations of patients between the second and third decades of life. In this study, we present the case of a 14-year-old female patient with the presence of a compound odontoma comprised of 40 denticles inthe left parasymphyseal region, which is treated by enucleation andbone graft placement.