1,720,993 research outputs found
Calcolosi delle ghiandole salivari minori. Sialoliths of the minor salivary glands
No full textObiettivo: Riportare il caso di una paziente con una tumefazione non dolente del palato duro. Materiali e metodi: Si presentava alla nostra osservazione una paziente di 67 anni con una tumefazione del palato duro avente dimensioni di 1,7 x 1,4 cm. La lesione si era sviluppata nei due anni precedenti causando disturbi funzionali alla masticazione e all’eloquio. All’esame TC la formazione appariva radiopaca con margini netti e osteosclerotici; inoltre risultava completamente isolata dalle strutture ossee adiacenti. Risultati: Si è optato per l’escissione completa della lesione. L’esame istologico ha permesso di porre diagnosi di calcolosi delle ghiandole salivari minori.MATERIALS AND METHODS. A 67-yearold woman presenting with a 1.7 x 1.4 cm
mass arising from the hard palate was
referred to our Department. The lesion
had been slowly growing for two years
and had caused her difficulties in chewing and speaking. CT examination of the
mass revealed a mixed content, almost
completely isolated from the underlying
bone, more opaque at the periphery than
at the core and resembling a cortico-cancellous structure.
RESULTS. The lesion was removed completely under local anesthesia, including
both the mucous capsule and the calcified
core. Macroscopic and microscopic findings made it possible to formulate a diagnosis of minor salivary gland lithiasis
A rare case of odontoma [Un raro caso di odontoma]
No full textOBJECTIVES. The aim of this study is to report a rare localization of a compound odontoma in the mandible, discovered accidentally on an orthopantomogram (OPT). MATERIALS AND METHODS. We report the case of a 22 years-old male patient referred to our department and presenting with impaction of lower third molars. OPT exam confirmed the suspect of compound odontoma surrounding the apexes of teeth 3.4 and 3.5, which is an unusual site of presentation for compound odontomas. CT exam revealed the boundaries of the lesion and its close contact with IAN (Inferior Alveolar Nerve). The surgical procedure can be described as follows: 1) regional anesthesia and triangular intrasulcular incision between 3.3 and 3.7; 2) exposure of bone, debridement just below the apexes of teeth 3.4 and 3.5; 3) denticles extraction; 4) revision of the surgical site, detection of the intact IAN and rinsing; 5) cavity filling with fibrin sponge and flap suture. RESULTS. Histological examination confirmed the working diagnosis: fibrous connective tissue sac surrounding the denticles. The dental tissues forming these denticles consist of a central core similar to pulp tissue, surrounded by primary dentin and covered with partially demineralized enamel and primary cement. In spite of the denticles close adherence to IAN, the patient was asymptomatic with no evidence of nerve injury one month after surgery. Moreover, the subsequent radiographic controls showed the complete recovery of the bone at one year after surgery. CONCLUSIONS. Odontomas are not really rare hamartomas in the general practice of oral and maxillofacial surgeons. The most common location is the anterior region of the maxilla (67%), as compared with the mandible (33%), but the peculiarity of this case was the location of a multiple odontoma in the posterior mandible. Usually, odontomas may cause disturbances in the eruption of teeth such as impaction, delayed eruption or retention of primary teeth; in those cases or in the event of any dentition anomaly or jaw deformation in children or adolescents, it is very important to investigate the presence of possible odontomas with radiographic examinations. In the above case, no delayed eruption was found. The radiographs alone enabled us to identify the firm adherence of the odontoma to the alveolar nerve and to prevent possible nerve compression consequences. The lesion was surgically excised in a conservative way, using an intraoral approach with total anesthesia, to ensure that the nerve is preserved
Critical review of literature on the use of short implants
Full text linkAim The aims of this review were to verify the validity of short implants as a treatment option in patients with partial or total edentulism, having more or less atrophic jawbones. Methods A systematic review of randomized controlled trials (RCT) was conducted, involving also prospective and retrospective studies published in English language between January 2005 and December 2015. The PubMed and Scopus databases were electronically analyzed. Titles and abstracts were selected, and full texts were evaluated. The data were organized in tables and then presented as a narrative analysis. Results The electronic search provided 891 publications, 50 articles were retrieved in full text and only 11 were included in the review. Although the performance of the implants was evaluated through different success and survival criteria, short implants have shown to have a similar performance to longer implants. Conclusions Short implants could be considered as a treatment option comparable to traditional lenght implant. However, other studies must be conducted to assess uniform criteria to state the quality of treatment
Central odontogenic fibroma interesting the maxillary sinus. A case report and literature survey
No full textOdontogenic fibroma (OF) is a rare benign odontogenic tumor deriving from the dental mesenchymal tissue and accounting for less than 5% of all odontogenic tumors. This paper presents an aggressive histologically diagnosed central odontogenic fibroma (COF) in a 17-year-old girl characterized by asymptomatic rapid growth with massive replenishment of the left maxillary sinus. We carried out a review of the literature to retrieve all published cases of COF especially focused on radiographic aspects and surgical treatment of cases characterized by clinical aggressive behaviour, as we observed in our patient. Search strategy included retrieval of English language papers, published from 1966 to today, in dental journals on MEDLINE/PubMed and EMBASE, and hand-searching of the bibliography of retrieved papers. Sixty-nine cases of COF were identified from 1954 to 2003 and a new one was added. We have compared characteristics of COFs according to age, gender, location, clinical and radiographic findings of aggressive development, and histology. We discuss clinical and radiographic aspects of our case compared with COFs previously published. We give suggestions for surgical treatment of COF in case of aggression to important anatomical structures
Benign cementoblastoma: a clinical case of conservative surgical treatment of the involved tooth
No full textThe benign cementoblastoma (BC) or ''true'' cementoma is a rare benign neoplasm arising from the odontogenic ectomesenchyme and representing about 1% to 6.2% of all odontogenic tumors. The BC more frequently affects young males in an age range of 20-30 years, occurring in the mandible about 3 times more than in the maxilla, and it is always physically attached to the tooth roots. This tumor is often asymptomatic until it produces pain, expansion or swelling of the jaw segment or compression of the inferior alveolar nerve. Early diagnosis is essential to save the tooth by enucleating the tumor, filling the root canals and apicectomy or curettage of the affected roots. A case of BC embedding the mandibular first right molar and resorbing the vestibular cortical bone, in a 48 year-old male, is reported. The radiographic examination showed a well-defined mixed-density unilocular mass, confluent with both the tooth roots of the mandibular first molar and surrounded by a radiolucent rim. A combined endodontic-surgical treatment was performed with the aim to remove the tumor while saving the tooth. Histological findings, differential diagnosis and surgical treatment of the tumor are discussed and compared with similar cases in the literature
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
CEMENTOBLASTOMA BENIGNO: UN CASO CLINICO CON TRATTAMENTO CHIRURGICO CONSERVATIVO DEL DENTE COINVOLTO
No full textThe benign cementoblastoma (BC) or ''true'' cementoma is a rare benign neoplasm arising from the odontogenic ectomesenchyme and representing about 1% to 6.2% of all odontogenic tumors. The BC more frequently affects young males in an age range of 20-30 years, occurring in the mandible about 3 times more than in the maxilla, and it is always physically attached to the tooth roots. This tumor is often asymptomatic until it produces pain, expansion or swelling of the jaw segment or compression of the inferior alveolar nerve. Early diagnosis is essential to save the tooth by enucleating the tumor, filling the root canals and apicectomy or curettage of the affected roots. A case of BC embedding the mandibular first right molar and resorbing the vestibular cortical bone, in a 48 year-old male, is reported. The radiographic examination showed a well-defined mixed-density unilocular mass, confluent with both the tooth roots of the mandibular first molar and surrounded by a radiolucent rim. A combined endodontic-surgical treatment was performed with the aim to remove the tumor while saving the tooth. Histological findings, differential diagnosis and surgical treatment of the tumor are discussed and compared with similar cases in the literature
Calcifying epithelial odontogenic (Pindborg) tumor. A clinical case
No full textCalcifying 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
Giant submandibular sialolith: a case report
No full textIntroduction: Salivary glands lithiasis (Sialolithiasis) is defined as calcified concretions in the salivary glands. Most common localization is in submandibular gland. Usually, submandibular stones are mainly located in Wharton's duct, whereas parotid stones are more often located in the gland parenchyma. Sialoliths are usually 5-10 mm in size, and stones more than 10 mm are unusual sizes. Exact etiology of sialolith formation is still unknown. Case report: We discuss a case of a 70-year-old patient, presenting painful swelling and a giant submandibular gland sialolith successfully treated with open surgery. Conclusions: A careful anamnesis and physical examination of the patient are important in the diagnosis of sialolithiasis. In addition, several imaging techniques, such as panoramic X-rays and Ultrasound, can be applied. The management can be both medical and surgical
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