Sociodemographic and clinical characterization of cases of 1,103 non-syndromic and 66 syndromic odontogenic keratocyst: a Brazilian multicenter study.

OBJECTIVES: This multicenter study aimed to evaluate cases of non-syndrome and syndromic odontogenic keratocyst, as well as cases of recurrence within these two groups. METHODS: This descriptive, analytical, retrospective cross-sectional study evaluated the sex, age and presence of multiple lesions in 1,169 individuals seen at 10 Brazilian oral and maxillofacial pathology centers. Of these, 1,341 odontogenic keratocysts were analyzed regarding clinical diagnosis, size, site, imaging appearance, signs and symptoms, type of biopsy, treatment, and recurrence. RESULTS: There was a similar distribution by sex. The median age of non-syndromic and syndromic patients was 32 and 17.5 years, respectively. The posterior mandible was the site most affected by small and large lesions in both groups and in recurrent cases. Unilocular lesions were more frequent, also in recurrent cases. Mainly small lesions showed this imaging appearance. Signs and symptoms were absent in most cases. Conservative treatment was the most frequent modality in all age groups, regardless of the patient's condition and recurrence. Recurrences were uncommon. CONCLUSION: This study showed a higher frequency of non-syndromic keratocysts in the population. Clinicopathological features related to the involvement of multiple sites, age, and recurrence may differ between syndromic and non-syndromic cases. Furthermore, we found an association between lesion size and some clinical features and between the time interval to recurrence and the syndromic spectrum. CLINICAL RELEVANCE: To contribute to a better understanding of the distribution and association between clinical, imaging, and sociodemographic characteristics in each spectrum of the lesion.

Evaluation of the Association of Early Implant Failure With Local, Environmental, and Systemic Factors: A Retrospective Study.

PURPOSE: This study aimed to assess the association of early implant failure (EIF) with demographic, local, environmental, and systemic factors. METHODS: Clinical charts of 594 individuals with 2,537 dental implants were assessed. EIF was characterized by implant loss before and up to the abutment connection. Logistic regression analysis was used to verify the association between EIF and local, environmental, and systemic factors at the individual and implant levels. The chosen level of significance was 5%. RESULTS: EIF occurred in 144 implants (5.68%) and in 97 individuals (16.3%). At the individual level, smoking habits (odds ratio [OR] = 2.54; 95% confidence interval [CI] = 1.00 to 6.47; P = .05), absence of postoperative antibiotic therapy (OR = 2.73; CI = 1.22 to 6.13; P = .02), and bone augmentation (OR = 1.83; CI = 1.17 to 2.85; P = .01) were significantly associated with EIF. At the implant level, smoking habits (OR = 2.90; CI = 1.60 to 5.26, P < .001), absence of postoperative antibiotic therapy (OR = 2.77; CI = 1.36 to 5.63, P = .005), postoperative complications (OR = 28.35; CI = 6.79 to 118.45, P < .001), implant length ≤8.5 mm (OR = 1.79; CI = 1.07 to 2.99; P = .03), and diameter <3.75 mm (OR = 1.65; CI = 1.08 to 2.52, P = .02) were associated with EIF. Age, sex, alcohol abuse, diabetes, hypertension, and long-term medication use were not associated with EIF at both individual and implant levels (P ≥ .12). CONCLUSIONS: Smoking habits, absence of antibiotic therapy, bone augmentation, postoperative complications, implant diameter <3.75 mm, and implant length ≤8.5 mm were associated with EIF. Clinicians should be aware of these associations that should be controlled for when feasible. Future cohort studies are required to confirm the risk factors.

Tumor Odontogênico Cístico Calcificante associado a Odontoma / Tumor quístico odontogénico calcificante asociado con odontoma / Calcifying cystic odontogenic tumour associated with Odontoma

O Tumor Odontogênico Cístico Calcificante ou Cisto de Gorlin é uma lesão odontogênica rara, descrita como neoplasia cística benigna de origem odontogênica, que apresenta comportamento clínico variável. Sua patogênese permanece desconhecida, embora comumente seja aceito que se desenvolva a partir de remanescentes do epitélio odontogênico, presentes na da mandíbula, maxila e gengiva. O Objetivo deste artigo é relatar o caso clínico de tumor quístico odontogénico calcificante asociado com odontoma. Paciente do gênero masculino, 11 anos de idade, que procurou o Serviço de Cirurgia e Traumatologia Bucomaxilofacial do Hospital Santo Antônio-OSID/Salvador-BA, apresentando aumento de volume intrabucal indolor, na região de corpo mandibular esquerdo. No exame imaginológico observou-se lesão radiolúcida unilocular, bem delimitada, estendendo-se da região de incisivo lateral até primeiro pré-molar inferior esquerdo, associado à massa radiopaca em seu interior além de unidade supranumerária deslocada para basilar da mandíbula. Foi realizada a biópsia excisional da lesão, constatando-se o diagnóstico de tumor odontogênico cístico calcificante associado à odontoma. O paciente encontra-se sem sinais de recidiva, com dois anos de acompanhamento em tratamento ortodôntico. O conhecimento das características da lesão, um exame clínico detalhado e a solicitação de exames complementares são fundamentais para um diagnóstico criterioso, com a finalidade de oferecer ao paciente o tratamento mais adequado, que atualmente consiste na enucleação total da lesão, obtendo-se um bom prognóstico, raramente com relatos de recidiva(AU)

El tumor odontogénico quístico calcificante es una lesión rara, descrito como neoplasia benigna, de origen odontogénico, que presenta un comportamiento clínico variable. El objetivo de este trabajo es presentar el caso clínico de tumor odontogénico quístico calcificante associado a odontoma. Paciente varón, de 11 años de edad, quien trató de Servicio y Cirugía Máxilofacial, Hospital Santo Antônio-OSID/Salvador-BA, y presentó hinchazón sin dolor intraoral en la región del cuerpo mandibular. En el examen de imágenes revelaron una lesión radiolúcida unilocular, bien definida, que se extiende desde la región del incisivo lateral al primer premolar inferior izquierdo, asociado con una masa radiopaca dentro de la unidad más supernumerario desplazado basilar mandibular. Se realizó biopsia por escisión de la lesión, lo que confirma el diagnóstico de tumor quístico calcificante asociado con odontoma odontogénico. El paciente se encuentra sin signos de recurrencia, con 2 años de seguimiento, el tratamiento ortodóncico. El conocimiento de las características del tumor odontogénico quístico calcificante, el examen clínico detallado y la solicitud de exámenes complementarios constituyen el fundamento para el diagnóstico certero con la finalidad de ofrecer al paciente el tratamiento más adecuado, que actualmente consiste en la enucleación total de la lesión, obteniéndose un buen pronóstico, con raras recidivas(AU)

The calcifying cystic odontogenic tumor is a rare lesion, described as benign neoplasm of odontogenic origin, which has variable clinical behavior. The aim of this paper is to present a case of calcifying cystic odontogenic tumor associate to odontoma. This is an 11 year male patient, who was treated at Maxillofacial Surgery Service, Hospital Santo Antônio-OSID/Salvador-BA and who presented intraoral swelling with no pain in the mandibular body region. The imaging examination revealed a well-defined unilocular radiolucent lesion, which extended from the lateral region of the lower left first premolar to the incisor, associated with a radiopaque mass within the unit, displaced supernumerary mandibular basilar. Excisional biopsy of the lesion was performed, and it confirmed the diagnosis of cystic odontogenic tumor associated with odontoma calcifying. At present, the patient is with no signs of recurrence during this two year follow-up orthodontic treatment. Knowledge of the calcifying cystic odontogenic tumor characteristics, detailed clinical examination and additional tests are the basis for accurate diagnosis in order to offer patients the most appropriate treatment, which currently consists of total enucleation of the lesion achieving good prognosis, and rare recurrence(AU)