Statement of Problem:One of the most challenging tasks for forensic science is to identify the unknown human skeletal remains of deceased individuals. Study of sex by distinguishing the various morphological characteristics of bones is utmost important in forensic anthropology and for medico-legal assessment.Purpose:The purpose of this article is to review the literature, to find if there is sufficient evidence to establish the use of mandible in sex identification.Materials and Methods:An electronic search was performed to identify suitable literature, using database of MEDLINE, PubMed, and EBSCOhost. Published articles in between January 2000 and April 2015 were searched. The main focus of search was on the various parameters of mandible studied in last 15 years for sex dimorphism. The focus was on the articles published on radiographic studies as well as on morphometric studies of dry mandible in which skeletal parameters were studied. The screening of titles and abstracts were done, suitable literature that fulfilled the inclusion criteria was selected for a full-text reading.Results:The initial literature search resulted in 89 articles, out of which only 36 articles fulfilled the inclusion criteria and were included in this systematic review.Conclusion:Out of 16 radiographic studies, 14 showed statistically significant results that the adult mandible could be used with increased sensitivity and objectivity to identify both sex and population affinity compared to other standard analytical techniques, whereas two studies showed insignificant results. Out of 20 morphometric studies of dry mandible 15 studies showed a positive correlation between sex dimorphism and mandibular parameters and five studies did not show any positive correlations between the two.
Aim:In the less dense bone, it is difficult to obtain implant anchorage. The present study was undertaken to determine the survival rate of Maestro™ implants placed in d3 and d4 bones.Materials and Methods:Fourteen patients (10 males and 4 females) were selected for the study and implants were evaluated for posttreatment changes in at 3, 6, 9 and 12 months from implant placement. The implant probing depth and mobility were recorded 3 and 6 months after prosthesis placement. Also, peri-implant bone level was assessed at the baseline and 12 months postoperatively, followed by a statistical analysis.Results:The mean plaque and gingival indices showed a reduction at repeated intervals. The mean sulcular bleeding showed a slight reduction which was statistically significant. An overall mean bone loss was observed after 12 months follow-up, which was statistically not significant. The overall survival rate of implants was reported as 92.3%.Conclusion:The specific implant used in the study is advantageous in the soft bone condition.Clinical Significance:Although, there is a great evidence of implant failure in compromised jaw quality, the newer designs and approaches suggest that the poor quality is not a contraindication.
This in vitro research aimed to evaluate the Tensile Bond Strength of Poly Ether Ether Ketone and Zirconia copings using resin cement with or without Visio.link adhesive. From commercially available Zirconia and PEEK, blocks were machined milled using (CAD)/(CAM) to obtain 20 Zirconia and 20 PEEK copings. These specimens were sandblasted using 110 μm of alumina. The two main groups (20 Zirconia and 20 PEEK copings) were divided further into 4 subgroups, GROUP 1 (n = 10) PEEK substructure with self-adhesive resin cement without pretreatment, and GROUP 2 (n = 10) PEEK substructure with self-adhesive resin cement pre-treated with Visio.link adhesive. GROUP 3 (n = 10) Zirconia copings with self-adhesive resin cement without pretreatment. GROUP 4 (n = 10) Zirconia copings with self-adhesive resin cement pre-treated with Visio.link adhesive. Universal testing machine was used to evaluate the tensile bond strength of these copings. The results were analyzed using SPSS software Version 25.0 (SPSS Inc., Chicago, IL, USA). One-way ANOVA and independent t-test were used to compare the mean scores. Statistically significant increase was observed in Tensile Bond Strength of samples when Visio.link adhesive was used. Tensile Bond Strength of PEEK copings and Zirconia copings with Visio.link adhesive is considerably greater than PEEK copings and Zirconia copings without adhesive. The mean Tensile Bond Strength of Zirconia (with or without adhesive) is less as compared to Tensile Bond Strength of PEEK (with or without adhesive), but the difference is not statistically significant.
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