Aim: This retrospective study investigated the survival rate and clinical performance of space maintainers fitted in 50 patients aged from 6-11years in the Department of Pediatric Dentistry at Selcuk University between 2016 and 2019.
Methodology: Sixty-one subjects were included in the study. The clinical examination included performing the gingival index (GI) and the plaque index. The values of the indexes were determined and compared, and the failures of retainers were recorded and analyzed in terms of survival.
Results: Follow-up loss occurred in 18% of 61 space maintainers. A total of 10% of the evaluated 50 space maintainers had failed due to breakage. By using the Kaplan–Meier method, the estimated mean survival time for space maintainers was 13 months. Lingual arches had the lowest mean survival time of 12 months. Band and loops and removable partial dentures had a similar probability of survival. A significant decrease was observed in the time-dependent evaluation of the means of plaque and gingival indexes; however, no significant difference was found between space maintainer types.
Conclusion: The successful use of space maintainers for the premature loss of primary tooth space is achieved by regular follow-ups with the patient’s parents, patient cooperation, and proper space maintainers and choice of material.
How to cite this article: Özüdoğru S, Tosun G. Survival and clinical evaluation of various space maintainers used for early primary tooth loss. Int Dent Res 2021;11(Suppl.1):222-7.
https://doi.org/10.5577/intdentres.2021.vol11.suppl1.32
Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
Aim: This study aims to present the fracture types and treatment methods of jaw fracture cases that presented at our center.
Methodology: Of six presenting cases, two were angulus, one was parasymphysis, three were subcondylar, and one was a medial condyle fracture only. All patients were evaluated both clinically and radiologically by CT of the atlanto-occipital joint. We managed two of the mandibular fractures with open and closed reduction (mixed) and four with closed reduction only. Dislocation was observed in only two patients. Internal fixation was performed using either mini plates (Medartis, Basel, Switzerland) or mini-screws. All cases united within three weeks to three months.
Results: After analyzing the epidemiology of six fractures and the outcomes of the surgical treatment, as well as assessing the complications related to the surgical procedures, it was determined that in cases with dislocation, bimaxillary fixation should be applied as a maintenance to open reduction therapy. In cases without dislocation, bimaxillary fixation only is sufficient.
Conclusion: An analysis of dislocation conditions according to fracture type supports that the incidence of dislocation is low in condyle fractures.
Conclusion: An analysis of dislocation conditions according to fracture type supports that the incidence of dislocation is low in condyle fractures.
How to cite this article: Özüdoğru S, Başaran MM, Ataözden T. Clinical examination of various jaw fractures and evaluation of open and closed reductions: Six case reports. Int Dent Res 2021;11(Suppl.1):274-8. https://doi.org/10.5577/intdentres.2021.vol11.suppl1.40
Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
Aim: To investigate cytotoxicity effect of different concentrations of Silver Diamine Fluoride/Potassium Iodide agent on human peripheral blood lymphocytes.
Materials and Methods: The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was used to determine the effects of SDF (0.38%, 3.8% and 38%) and KI (4%, 58.3%) on cell viability on human lymphocytes after 24 h, 48 h and 72 h of incubation.
Results: MTT test results demonstrated that cell viability decreased as concentrations of SDF increased. 0.38 % SDF was observed to induce the highest cell death after 72 h of contact. At 3.8 % and 38 %, SDF were found to be cytotoxic on human lymphocytes at all application periods. KI solutions at 4 %, 58.3 % concentrations did not show cytotoxicity effect at 24 h exposure, conversely, which resulted in cell proliferation, while moderate cytotoxicity was observed at incubation periods for 48 h and 72 h.
Conclusion: SDF was found to be cytotoxic to human peripheral lymphocytes at all three concentrations and at all exposure times. KI solutions showed cell proliferation in the first 24 hours, which is important in determining the protocol for the use of this solution in clinical procedures, especially in dentistry.
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