SUMMARYTreatment of severe maxillary atrophy with implants has achieved important successes in recent years. The limit of implant insertion is related to inadequate bone quantity (i.e. height and width). Alveolar bone grafting, sinus lifting and major grafting via Le Fort I osteotomy have used in the past to restore bone volume prior of implant insertion. However successes do not always occur and a second stage surgery is necessary in most cases. Immediate loading cannot be performed in all grafted bone. In recent years a new treatment approach has been proposed by using zygomatic implants. This new technique can provide a better stability to the prosthesis and less morbidity for patient. Here a cases series of eighteen patients rehabilitated with zygomatic together with standard implants and immediate loading is reported.

A exigência estética na Odontologia, levou ao desenvolvimento de cerâmicas reforçadas como substitutas às ligas metálicas na confecção de infraestruturas protéticas. Esse relato de caso, descreve o restabelecimento da estética e função de dentes anteriores por meio de coroas cerâmicas reforçadas por dissilicato de lítio. A paciente procurou tratamento odontológico relatando insatisfação com o sorriso. Durante a avaliação, foi observada desarmonia de cor e forma, com presença de coroa em zircônia e núcleo metálico fundido no dente 12 e extensa restauração em resina composta no dente 11. Diante disso, o tratamento proposto foi a remoção do núcleo metálico fundido e coroa de zircônia, retratamento endodôntico do dente 12 e instalação de pino de fibra de vidro e reabilitação com coroa cerâmica reforçada por cristais de dissilicato de lítio IPS e.max (Ivoclar-Vivadent) nos dentes 12 e 11.

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The aim of this retrospective and observational study was to report the prevalence and characteristics of salivary gland lesions (SGL) in patients treated at the State University of Maringa, between 1995 and 2018. Data from medical records of patients with neoplastic and non-neoplastic SGL concerning to age, sex, ethnicity, anatomical location, microscopic diagnosis and treatment were collected. All SGL with diagnosis confirmed by microscopic examination were considered. Of the 3,127 biopsied lesions, 381 (12.1%) SGL were identified. Caucasian (71%) women (51%) aging from 11 to 20 years (33%) were more affected. 88.5% (n= 337) were non-neoplastic lesions, 7% (n= 27) benign neoplasms and 4.5% (n= 17) malignant neoplasms. Mucocele was the most prevalent lesion (n= 269%), followed by pleomorphic adenoma (n= 25%). Recognition and appropriate management of these lesions is essential, especially because malignant neoplastic lesions of the salivary glands can be very aggressive.

SUMMARYSpiral dental implant (SDI) is an implant with a conical internal helix that confers the characteristic of self-drilling, self-tapping, and self-bone condensing. These proprieties offer better control during insertion of SDI giving a high primary stabilization, even in poor quality bone. A shorter diameter of SDI results in reduced drilling during insertion and consequently less trauma and minimal bone loss. To address the research purpose, the investigators designed a retrospective cohort study. The study population was composed of 25 patients, 11 males and 14 females that have been treated by Dr. Balan with 187 SDI positioned in mandible and into maxilla bone. The implants were placed during the years 2013 to 2014 in Dr. Balan clinic. All patients underwent the same surgical protocol. Several variables are investigated: demographic (age and gender), anatomic (upper/lower jaws and tooth site), implant (length and diameter and type) variables, edentulism (partial or total), and comorbid status of health (i.e.: hypothyroidism, parodontitis, hypertension, diabetes, presence of cancer, heart disease, hepatitis and rheumatologic disease). Pearson Chi-Square test was used to investigate variables and p < 0.05 was considered statistically significant. Statistically it has been shown that females have a higher possibility of unsuccessful respect of male, with a "p value" of 0.014. Another important impact factor for success of implant insertion has been represented by concomitants pathologies: cancer represents the most negative high factor risk with a percentage of unsuccessful of 50%, followed by heart disease (15%), and diabetes (3.7%). SDIs are reliable tools for difficult cases of oral rehabilitation. They have a higher success and survival rate, which means stable results over time. No differences were detected among SDI lengths, implant/crown ratio. In addition, the insertion of SDIs in banked bone can be performed without adverse effects. Finally, flapless and computer tomography-planned surgery does not significantly increase the clinical outcome of SDIs in complex rehabilitation. Cancer represents the most important variable to consider when a patient wants to do oral rehabilitation because of its high risk of unsuccessful.