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Language Medicina oral, patología oral y cirugía bucal. Ed inglesa. 2011. Vol. 16, no. 5
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- Predictability of the resonance frequency analysis in the survival of dental implants placed in the anterior non-atrophied edentulous mandible(2011) González García, R.; Monje Gil, Florencio; Moreno García, C.Background: Dental primary implant stability is considered essential in the success of the osseointegration process. The recent advent of the resonance frequency analysis (RFA) seems to effectively measure primary implant stability, although its relationship with implant survival has to be further established. Patients and Methods: Seventy patients with complete mandibular edentulism underwent dental implant rehabilitation by means of the placement of 68 dental implants within the interforaminal region and subsequent placement of an overdenture. Primary implant stability was measured by means of RFA and it was expressed in terms of implant stability quotient (ISQ) on the day of the implant insertion and at the time of the healing abutment placement in a conventional implant two-stage surgical procedure. Results: Overall implant survival rate was 97.1% at the end of the follow-up period. The mean ISQ value for 3.75 and 4.25 mm diameter implants was 78.4 ± 5.46 and 80.83 ± 5.35 respectively, at the time of the implant placement; and 76.68 ± 4.34 and 78.22 ± 6.87 respectively, at the second surgical stage. No statistical differences were observed in relation to changes in mean ISQ value along the healing process Conclusions: No statistical differences in terms of primary and secondary implant stability measured by RFA exists between 3.75 mm and 4.25 mm diameter implants in the conventional implant two-stage surgical procedure in patients with non-atrophied edentulous mandible being restored with an overdenture. Furthermore, no statistical association between RFA and the implant insertion torque was observed for endosseous dental implant placement at the first surgical stage. © Medicina Oral.
- Meta-analytic study on the frequency and treatment of oral antral communications(2011) Franco Carro, Borja; Barona Dorado, Cristina; Martínez González, María José Sandra; Rubio Alonso, Luis Jesús; Martínez González, José MaríaObjective: To determine the optimum surgical treatment for oral antral communications (OAC) and to understand the main post-operative complications.Study Design: Meta-analytical, observational and retrospective study of 1,072 cases of OAC obtained from a literature review of 15 articles. Results: OAC occur slightly more often in men and during the fourth decade of life. Its primary etiological factor is dental extraction, most often affecting the third molar. The most common treatment has been the use of Bichat's fat pad grafts, whereas the technique with the highest percentage of complications has been the use of the palatal rotation flap. The most frequent complication has been the fistulization of the OAC. Conclusions: Early diagnosis of OAC and its treatment within 48 hours of evolution are fundamental in order to properly resolve this pathology. The use of Bichat's fat pad grafts is a simple technique that offers excellent vascularization and results. © Medicina Oral.
- Cross-cultural adaptation of the orthognathic quality of life questionnaire (OQLQ) in a Brazilian sample of patients with dentofacial deformities(2011) Bortoluzzi, Marcelo Carlos; Manfro, Rafael; Soares, Iathanabi Cathussa; Presta, Andréia AntoniukObjectives: The aim of this study is to translate into Portuguese-Brazilian language and adapt cross-culturally to the Brazilian population the Orthognathic Quality of Life Questionnaire (OQLQ). Study Design: The cross-cultural adaptation process followed six stages which are; (I) initial translation, (II) synthesis of the translation, (III) back translation, (IV) expert committee and (V) test of the prefinal version. For validation process, the OQLQ results were compared with Oral Health Impact Profile Questionnaire (OHIP-49), with the generic SF-36 Quality of Life Questionnaire and a visual analogue scale. A convenience sample of 25 patients was selected in two Southern Brazilian states of Santa Catarina and Rio Grande do Sul. Results: Internal consistency analysis of the OQLQ-Brazilian showed good correlation for items or domains and the test-retest reliability also presented excellent intra-class correlation coefficients. OQLQ-Brazilian exhibited a weak and negative correlation with SF-36, and good correlation with OHIP-49. Conclusion: The OQLQ-Brazilian preserved and reached equivalence with its original source and the findings also corroborate that there is good evidence for the construct validity. The demonstration of its reproducibility, reliability and validity makes this instrument an additional useful parameter for evaluation of the impact of dentofacial deformity over the quality of life for Brazilians. © Medicina Oral.
- Do third molars weaken the mandibular angle?(2011) Bezerra, Tácio Pinheiro; Soares, Eduardo Costa Studart; Pita Neto, Ivo Cavalcante; Costa, Fábio Wildson Gurgel; Batista, Saulo Hilton BotelhoObjective: The purpose of this study is to estimate how is the magnitude of the impact of a mandibular third molar on the mandibular angle stiffness. Study Design: It was performed a literature search on whole MEDLINE and LILACS data base to find articles that match the following inclusion criteria: cohort studies presenting data on patients with mandibular fractures and third molars; that had a similar angle fracture definition; and that present data available to be cross-classified in a statistic analysis. Results: The sample was composed by 4 studies, involving 2533 patients from USA, Nigeria, Germany and Jordan, evaluated between 1976 and 2001. The analysis of the sample shows a relative risk for a mandibula to fracture, comparing patients with and without third molars, ranging from 1,18 to 2,25. The data of the sample was grouped because of the homogeneity of the articles methods. The estimated relative risk across the 4 studies was 1,94 (95% CI 1,6 - 2,35). Conclusions: The presence of a third molar may double the risk of an angle fracture of the mandible to occur. Even with this data, the present study cannot support conditions related to the third molar that may affect this impact. Further studies are necessary to discuss the true indication of removal of these teeth as a prophylactic measure in population groups more predisposed to fracture. © Medicina Oral.
- Severe odontogenic infections : epidemiological, microbiological and therapeutic factors(2011) Sánchez, R.; Mirada, E; Arias, J.; Paño Pardo, José Ramón; Burgueño García, MiguelObjectives: A retrospective study is made of the odontogenic infections treated in La Paz University Hospital (Madrid, Spain) during 2007 and 2008, with an epidemiological and microbiological analysis of a large group of patients.Study Design: A retrospective descriptive study was made, involving the consecutive inclusion of all patients with odontogenic infection requiring admission to our hospital in the period between January 2007 and December 2008. Results: A total of 151 patients were included, with a mean age of 40.3 years and a balanced gender distribution. The most frequently affected teeth were those located in the posterior mandibular segments, caries being the main underlying cause. Most isolates comprised mixed flora, particularly viridans streptococci, different species of Prevotella, Micromonas micros, and different species of Actinomyces. Susceptibility analysis of the microbial isolates showed a high percentage resistance to clindamycin (42.8% of all isolates), particularly among viridans streptococci.Conclusions: The use of antibiotics in head and neck infections requires updated protocols based not only on the existing scientific evidence but also on the epidemiological reality of each center. On the other hand, identification is required of the surgical factors determining infection and how they influence morbidity associated with this type of pathology. © Medicina Oral.
- Mandibular solitary plasmocytoma of the jaw : a case report(2011) Rodríguez Caballero, B.; Sánchez Santolino, Sergio; García-Montesinos Perea, Belén; García Reija, María Fe; Gómez Román, José Javier; Saiz Bustillo, Ramón CarlosPlasma cell tumors are lymphoid neoplasms with an uncontrolled proliferation of B cells. These are divided into localized forms (solitary bone plasmocytoma -SBP- and extramedullary plasmocytoma -EP-) and disseminated forms (multiple myeloma-MM-). The SBP is a rare and controversial disease. The aim of this article is the analysis of this entity based on the presentation of a 64-year-old man without previous medical history, with a mass in the left mandibular angle extending to the parotid region on the same side. The panoramic radiography, computed tomography and magnetic resonance imaging showed an osteolytic lesion 6.5 x 5 x 6.7 cm in the mandibular angle with infiltration of the masticator space and left parotid region. The normality of the extension study, and histopathological examination confirmed the diagnosis of SBP. The patient received treatment with radiotherapy with good outcome. © Medicina Oral.
- Combination of alpha lipoic acid and gabapentin, its efficacy in the treatment of burning mouth syndrome : a randomized, double-blind, placebo controlled trial(2011) López D'alessandro, Edgardo; Escovich, LiviaBurning Mouth Syndrome (BMS) is a disease that manifests as burning in the tongue or in any area of the oral mucosa, in the absence of clinically verifiable injuries. Objectives: To verify the efficacy of alpha lipoic acid (ALA) and gabapentin (GABA), used individually and jointly, to reduce the burning in patients with burning mouth and establish a drug therapy for the BMS. Study Design: During April and May 2008, we conducted a randomized, double-blind, placebo-controlled trial in the Department of Clinical Stomatology, Faculty of Dentistry, Rosario, Argentina. The gathering of patients was between those ones with BMS who were treated in our service between March 2003 and March 2008 without complying with the applied treatments. The 120 patients were randomly divided into 4 groups and were provided, by lot and in a blinded fashion, with four different treatment cycles consisting of the following drugs: Group A (n = 20) 600 mg/day of alpha lipoic acid for two months, Group B (n = 20) 300 mg/day of gabapentin for two months, Group C (n = 20) a combination of both drugs for two months and Group D (n = 60) 100 mg/day of ce-llulose starch for two months (control group). Results and Conclusions: All 120 patients completed the treatment. The best response was obtained with the combination of ALA + GABA, with a 70% of the cases with reduced burning in this group and a 13.2 times greater chance of presenting positive changes for these patients than those taking placebo. The combined use of drugs that act at different levels of the nociceptive system can be useful for the treatment of this syndrome. © Medicina Oral.
- Occular complications following dental local anesthesia(2011) Aguado Gil, José Mª; Barona Dorado, Cristina; Lillo Rodríguez, Juan Carlos; Fuente González, David Sebastian De la; Martínez González, José MaríaObjective: To determine the frequencyof appearance and the factors most commonlyassociated with ocular complications following dental local anesthesia, also establishing the location and type of anesthesia used. StudyDesign: An indexed search in the Pubmed and Compludoc databases was carried out with the keywords "oral anesthesia", "ocular", "ophthalmologic", "damage", "complications", "injection". We established a limitation that the literature had to have been published after the year 1970. A total of 19 articles were obtained, forming a total sample of 37 patients. The patient's sex, age, nerve anesthetized, type of anesthetic used, ophthalmological complication present, recoverytime, treatment and side effects were analyzed. Results: There is a higher involvement of females (77%). The average age was 34.2 years. There was no preference for an anesthetic technique. Diplopia was the most common complication (65%), which coincides with the data fromother authors. Almost all of the complications were of a temporarynature, with an average recoverytime of 68 minutes. Conclusions: This is one of the few studies of its kind in dental literature, it thus being difficult to make precise conclusions. Ophthalmological complications are seldoma problem, diplopia being the most common among them. The authors appear to indicate an intravascular injection of the anesthetic as the cause of the problem, and therefore, it should be avoided in order to prevent accidents at the ocular level. © Medicina Oral.
- Histopathological findings in oral lichen planus and their correlation with the clinical manifestations(2011) Fernández González, Francisca; Vázquez Álvarez, Rocío; Reboiras López, Dolores; Gándara Vila, Pilar; García García, Abel; Gándara Rey, José ManuelObjectives: To highlight the most characteristic histopathological findings of oral lichen planus and their correlation with the clinical manifestations and forms. Study design: We performed a retrospective study of 50 biopsied and diagnosed cases of oral lichen planus obtained over a period of 11 years, spanning from May 1998 to April 2009. We analyzed the age and sex of the patient, type of lichen planus, location and different histopathological findings, comparing them with the clinical lesions. Results: Seventy eight percent of the patients are female and 22% are male, with an average age of 56.06 years for both sexes. The most frequent clinical form is reticular, present in 78% of the cases, and the most common location is the buccal mucosa, present in 70% of the patients. Hydropic degeneration of the basal layer and lymphocytic infiltration in the subepithelial layer are observed in the entire sample. Signs of atypia were identified in 4% of the cases, but without dysplasic features. Other common histological findings were the presence of necrotic keratinocytes (92%), hyperplasia (54%), hyperkeratosis (66%), acanthosis (48%), and less frequently, serrated ridges (30%) and the presence plasma cells (26%) Conclusions: Oral lichen planus is a disease that is more common in women, usually appearing in the fifth and sixth decades of life. The most common clinical form is reticular, manifesting mainly in the buccal mucosa. Histological findings characteristic of oral lichen planus include hydropic degeneration of the basal layer, lymphocytic infiltration in the subepithelial layer and the absence of epithelial dysplasia; however, it is also frequent to observe hyperplasia phenomena at the epithelial level, hyperkeratosis, acanthosis and the presence of necrotic keratinocytes. © Medicina Oral.
- Recurrent odontogenic ghost cell carcinoma (OGCC) at a reconstructed fibular flap : a case report with immunohistochemical findings(2011) Li, Bo Han; Cho, Young Ah; Kim, Soung Min; Kim, Myung-Jin; Hong, Sam Pyo; Lee, Jong HoOdontogenic ghost cell carcinoma (OGCC), a malignant counterpart of the odontogenic ghost cell tumor (OGCT), with aggressive growth characteristics, is exceedingly rare. A painful swelling in the jaw with local paresthesia is the most common symptom. We described a case of 47-year Korean woman who had a rare central epithelial odontogenic ghost cell carcinoma which recurred at reconstructed fibular flap. Immunohistochemical differences between OGCT and OGCC analyzed using primary and recurred surgical specimen. On the basis of this case, the tumor started as an OGCT and transformed into OGCC with highly aggressive, rapidly growing, infiltrative tumors. Our findings suggest that some of the cytokines produced by ghost cells may play important roles in causing extensive bone resorption in the odontogenic ghost cell carcinoma. Wide local excision with histologically clean margins is the treatment mode of selection. Also, we recommend close long-term surveillance of OGCT because of high recurrence and potential for malignancy transformation. © Medicina Oral.
