Mandibular cortical indices on cone-beam computed tomography images in osteoporotic women on treatment with oral bisphosphonates.

OBJECTIVE: To evaluate the mandibular cortical indices in osteoporotic women receiving oral bisphosphonates (oBPs). MATERIAL AND METHODS: The study group included 46 Caucasian women aged over 55 years on treatment with oBPs for postmenopausal osteoporosis. Information recorded included age, weight, height, type of oBP, duration of treatment, comorbid conditions and coadjuvant medication. Forty-six age-matched Caucasian women with no known diagnosis of osteoporosis were selected as the control group. All participants underwent cone-beam computed tomography, and the mandibular cortical width (MCW) and the height from the inferior mandibular border to the mental foramen (MBMF) were measured. RESULTS: The MBMF was similar in the participants with osteoporosis and in controls. MCW was significantly greater in the participants with osteoporosis than in the controls (p < 0.001). CONCLUSION: Mandibular cortical width should not be used to predict the risk of bisphosphonate-associated osteonecrosis of the jaws.

Criteria for the prescription of oral bisphosphonates for the treatment of osteoporosis in a series of women referred for tooth extraction

Objective: To evaluate the criteria for the prescription of oral bisphosphonates (OB) in a series of women with osteoporosis referred for tooth extraction. Study design: The study included 38 postmenopausal women on treatment with OBs. The following variables were analysed: age, weight, height, type of OB and duration of treatment, bone densitometry and risk factors for osteoporosis. In addition, the osteoporosis self-assessment tool (OST) was administered and collagen type I Ctelopeptide (CTX) levels were measured.Results: Bone densitometry had only been performed in six patients (15.7%) before starting OB treatment. Based on the results of the OST, nine (23.6%) of the participants presented a low risk of osteoporosis. CTX levels were measured in 23 patients: 11 (47.8%) presented values below 150 pg/ml.Conclusion: Although all patients in the present series were on treatment with OBs, a large percentage did not satisfy the criteria for the initiation of treatment for postmenopausal osteoporosis (AU)

Criteria for the prescription of oral bisphosphonates for the treatment of osteoporosis in a series of women referred for tooth extraction.

OBJECTIVE: To evaluate the criteria for the prescription of oral bisphosphonates (OB) in a series of women with osteoporosis referred for tooth extraction. STUDY DESIGN: The study included 38 postmenopausal women on treatment with OBs. The following variables were analysed: age, weight, height, type of OB and duration of treatment, bone densitometry and risk factors for osteoporosis. In addition, the osteoporosis self-assessment tool (OST) was administered and collagen type I C-telopeptide (CTX) levels were measured. RESULTS: Bone densitometry had only been performed in six patients (15.7%) before starting OB treatment. Based on the results of the OST, nine (23.6%) of the participants presented a low risk of osteoporosis. CTX levels were measured in 23 patients: 11 (47.8%) presented values below 150 pg/ml. CONCLUSION: Although all patients in the present series were on treatment with OBs, a large percentage did not satisfy the criteria for the initiation of treatment for postmenopausal osteoporosis.

Retrospective study of 145 supernumerary teeth.

OBJECTIVE: The goal of the present retrospective study is to describe the distribution of the supernumerary teeth in a population of patients that have been attended at the Public Clinic of the Department of Oral Surgery. BACKGROUND: Supernumerary teeth and multiple hyperdontia are usually associated with different syndromes, such as Gardner syndrome, or with facial fissures; however, they can appear in patients without any pathology. Their prevalence oscillates to 0.5-3.8% in patients with permanent teeth and to 0.35-0.6% in patients with primary teeth. PATIENTS AND METHODS: A total of 36,057 clinical histories of patients that were admitted at the clinic between September of 1991 and March of 2003 were revised. The following data were extrapolated: age, sex, number of extracted supernumerary teeth, localization, morphology and type of supernumerary teeth. Consequently, 102 patients were included into the present study. RESULTS: Of the 147 supernumerary teeth identified in the oral cavities of patients 145 were extracted. The most frequent supernumerary teeth identified were mesiodens (46.9%), followed by premolars (24.1%) and fourth molars or distal molars (18%). As for location, 74.5% of the supernumerary teeth were found in the superior maxillary bone and 46.9% of the supernumerary teeth were present in the palatine/lingual area. Heteromorphology was found in two thirds of the supernumerary teeth, with conical shape being the most frequent. Finally, 29.7% of the supernumerary teeth had occlusion with permanent teeth, and mesiodens were the predominating type of supernumerary teeth that showed this feature. CONCLUSIONS: Mesiodens very frequently cause retention of permanent incisors, which erupt spontaneously after the extraction of supernumerary teeth, if there is sufficient space in the dental arch and if they conserve the eruptive force. Generally, supernumerary premolars are eumorphic and are casually discovered during radiological exam, if not producing any symptomology.

Estudio retrospectivo de 145 dientes supernumerarios / Retrospective study of 145 supernumerary teeth

Objetivo: El presente estudio retrospectivo pretende describir la distribución de los dientes supernumerarios en una población de pacientes que acuden a una Unidad ambulatoria de Cirugía Bucal.Introducción: Los dientes supernumerarios y la hiperodoncia múltiple se asocian normalmente con diferentes síndromes como el de Gardner o con fisuras faciales; sin embargo, pueden aparecer en pacientes sin ningún tipo de patología. Su prevalencia oscila entre el 0,5 y el 3,8% en la dentición permanente y entre el 0,35 y el 0,6% en la decidua.Pacientes y método: Para ello, se revisaron 36.057 historias clínicas de pacientes que acudieron a nuestro Servicio entre septiembrede 1991 y marzo de 2003. Se recogieron los siguientes datos: edad, sexo, número de dientes supernumerarios extraídos, localización, morfología y tipo de diente supernumerario. El número de pacientes incluidos en el estudio fue de 102.Resultados: De los 147 dientes supernumerarios descubiertos en la cavidad bucal, se extrajeron un total de 145. El grupo más frecuente fue el de los mesiodens (46,9%), seguido por los premolares supernumerarios (24,1%) y los cuartos molares supernumerarios o distomolares (18%). El 74,5% de los dientes supernumerarios se localizaban en el maxilar superior y un 46,9% de los dientes supernumerarios se localizaban en palatino/lingual. La morfología heteromórfica aparecía en dos tercios de los dientes supernumerarios, siendo la más frecuente la conoide. El 29,7% de los dientes supernumerarios producían la inclusión de los dientes permanentes, siendo el mesiodens el que la producía con mayor frecuencia.Conclusiones: Los mesiodens producen con elevada frecuencia la retención de los incisivos permanentes, que erupcionanespontáneamente después de la extracción de los dientes supernumerarios, si tienen espacio suficiente en la arcada y conservan la fuerza eruptiva. Los premolares supernumerarios tienen normalmente morfología eumórfica y son un hallazgo radiológico casual, al no producir ningún tipo de sintomatología

Objective: The goal of the present retrospective study is to describe the distribution of the supernumerary teeth in a population of patients that have been attended at the Public Clinic of the Department of Oral Surgery.Background: Supernumerary teeth and multiple hyperdontia are usually associated with different syndromes, such as Gardner syndrome, or with facial fissures; however, they can appear in patients without any pathology. Their prevalence oscillates to 0.5-3.8% in patients with permanent teeth and to 0.35-0.6% in patients with primary teeth.Patients and Methods: A total of 36,057 clinical histories of patients that were admitted at the clinic between September of 1991 and March of 2003 were revised. The following data were extrapolated: age, sex, number of extracted supernumeraryteeth, localization, morphology and type of supernumerary teeth. Consequently, 102 patients were included into the present study.Results: Of the 147 supernumerary teeth identified in the oral cavities of patients 145 were extracted. The most frequent supernumerary teeth identified were mesiodens (46.9%), followed by premolars (24.1%) and fourth molars or distal molars (18%). As for location, 74.5% of the supernumerary teeth were found in the superior maxillary bone and 46.9% of the supernumerary teeth were present in the palatine/lingual area. Heteromorphology was found in two thirds of the supernumerary teeth, with conical shape being the most frequent. Finally, 29.7% of the supernumerary teeth had occlusion with permanent teeth, and mesiodens were the predominating type of supernumerary teeth that showed this feature.Conclusions: Mesiodens very frequently cause retention of permanent incisors, which erupt spontaneously after the extraction of supernumerary teeth, if there is sufficient space in the dental arch and if they conserve the eruptive force. Generally, supernumerary premolars are eumorphic and are casually discovered during radiological exam, if not producingany symptomology