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Advanced Periodontology and Implant Dentistry - Volume:8 Issue: 2, Dec 2016

Journal of Advanced Periodontology and Implant Dentistry
Volume:8 Issue: 2, Dec 2016

  • تاریخ انتشار: 1395/10/13
  • تعداد عناوین: 7
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  • Mahdi Kadkhodazadeh, Reza Amid, Maryam Torshabi, Niknaz Yahyazadeh, Navid Yousefi, Mehdi Ekhlasmand Kermani Pages 37-42
    Background. Visfatin (pre-B-cell colony-enhancing factor) is a salivary biomarker secreted from a variety of cells and is thought to have some proinflammatory and immune-modulating effects. This study compared salivary concentrations of visfatin in patients with chronic periodontitis and periimplantitis and healthy individuals.
    Methods. In this cross-sectional and descriptive trial, patients were selected on the basis of inclusion and exclusion cri-teria. The whole saliva samples were collected; then according to the measured clinical parameters the patients were cate-gorized to peri-, chronic periodontitis and periodontally healthy individuals. The concentrations of visfatin were evaluated using a standard ELISA kit. The salivary concentrations of visfatin were statistically analyzed using Kruskal-Wallis test. A probability value of less than 0.05 was considered significant.
    Results. A total of 40 participants (21 females and 19 males) were enrolled in this study. The mean salivary visfatin con-centrations in the periodontally healthy individuals, periimplantitis patients and chronic periodontitis patients were 23.97 ng/mL, 12.83 ng/mL and 11.95 ng/mL, respectively. However; visfatin levels were higher in healthy individuals compared to other groups No significant differences were found in salivary visfatin concentrations between the three groups.
    Conclusion. Under the limitations of this study, no significant relationships were found regarding salivary concentrations of visfatin among periimplantitis and chronic periodontitis patients as compared to healthy individuals; however, more studies are required in this regard.
    Keywords: Visfatin, saliva, periimplantitis, chronic periodontitis
  • Omid Fakheran, Fereshte Moosaali Pages 43-48
    Background. The present study was undertaken to evaluate the level, sources and quality of information on implant treatment as an option for replacement of missing teeth, among a selected sample of dental patients in Kerman, Iran.
    Methods. A cross-sectional study was conducted on 305 subjects who attended the 6 main dental clinics in Kerman, Iran during January and February 2014. A standardized self-administered closed-ended questionnaire, pretested through a pilot survey, was used in the study. The questionnaires were distributed among the subjects during their regular dental visits. Data obtained from the questionnaires were scored and analyzed with SPSS 16.0.
    Results. The results showed that 76.7% of the subjects had heard about dental implant as a treatment modality. Regarding dental implants, dentists were the main source of information (40.7%), followed by the relatives and friends (17.0%). Lack of precise knowledge about implant therapy was the major factor preventing the subjects from choosing this kind of treatment in 35.7% of the subjects and the high cost of implant procedure (31.5%) was the second obstacle. Concerning the subjects’ opinion about the quality of implant therapy, 73.1% of the subjects indicated “excellent” or “good” and just 14.1% of them mentioned “poor” or “very poor” option.
    Conclusion. The results of this survey showed that the majority of the participants were aware about dental implants as an option for replacing missing teeth. It also showed the important role of dentists in providing accurate information for the patients about this treatment option.
    Keywords: Awareness, dental implants, patients
  • Adel Pirjamali Neisiani, Mohsen Sarafbidabad Pages 49-54
    Background. Improving the implantation conditions in order to reduce the failure is always desirable for researchers. The aim of this study was to compare two different types of dental implant materials from biomechnical viewpoint in order to introduce a novel simulation method to select suitable materials for dental implants.
    Methods. In this research, drilling process was performed in the cortical bone of the mandible by finite element analysis simulation. Then, a 3D model of the produced hole in the drilled sitewas derived and a dental implant model by ITI design was inserted into the cavity. The space remaining between the implant and cavity was considered as a newly formed cortical bone area. Implant loading was performed on two dental implants with different types of material. The change in the volume of the cortical bone around each implant was considered a criterion for evaluating bone damage. Additionally, the micromotion of dental implant in the mandible after implantation was used for investigating dental implant stability.
    Results. After implant loading, the volume changes in newly formed cortical bone around Ti and Zr-2.5%Nb dental im-plants were measured at 0.010809 and 0.010996 mm3, respectively. Furthermore, micromotion of Ti and Zr-2.5%Nb dental implants were measured at 0.00514 and 0.00538 mm, respectively.
    Conclusion. This study showed that Ti dental implant creates better conditions than Zr-2.5%Nb dental implant in the maxillofacial region.
    Keywords: Dental implant, mandible, finite element analysis, drilling operation
  • Amir Mohammadi, Afsaneh Zarghami, Amir Houman Sadrhaghighi Pages 55-59
    Background. Orthodontic mini-implants provide skeletal anchorage for tooth movement. There are two designs of mini-implants, tapered and cylindrical, which exhibit different clinical characteristics, including possible micro-damage to cor-tical bone. Complications such as peri-implantitis and pain after mini-implant placement are common. The aim of this study was to evaluate the effect of mini-implant design on peri-implantitis and post-insertion pain level.
    Methods. A total of 152 tapered and cylindrical mini-implants were randomly inserted into 76 patients (17 male, 59 fe-male) who were over 16 years of age. Peri-implantitis was assessed using signs of inflammation around mini-implant head. Pain levels of injection, during and immediately after insertion up to one week after implantation, were registered using an 11-point horizontal visual analogue scale (VAS). Data were analyzed using chi-squared and Mann-Whitney U tests.
    Results. Peri-implantitis was observed in 7% of mini-implants. There was no significant difference between tapered and cylindrical mini-implants in the number of peri-implantitis cases (P > 0.05). Post-insertion pain increased for 6 hours after insertion, and then decreased gradually. None of the patients reported pain a week after mini-implant insertion. There was no significant difference in pain levels of the two groups at all time intervals (P > 0.05). Maximum post-insertion pain (6 hours after implantation: 2.52 ± 2.66) was significantly higher than injection pain (1.38±1.71) (P Conclusion. It was concluded that mini-implant design had no significant effect on peri-implantitis and post-insertion pain level.
    Keywords: Mini-implant design, peri, implantitis, pain level, injection
  • Ting Jing Kweh, Ru Yueh Tham, Jian Yee Gu, Ahsan Shahidul, Pulikkotil Shaju Jacob, Suan Phaik Khoo Pages 60-66
    Background. The present study was undertaken to determine the effect of local and systemic inflammation on the quantity and localization of gingival mesenchymal stem cells (gMSCs).
    Methods. Gingival samples were collected from 34 systemically healthy (group 1) and 10 consenting adult patients with type II diabetes mellitus (T2DM) (group 2), who had reported for various dental treatments, requiring excision of gingival tissues as part thereof. The tissue samples were further stratified into three categories: healthy gingiva, gingivitis-affected and periodontitis-affected. Samples mounted on slides were stained with hematoxylin and eosin (H&E) while CD105 antibody was used for immunohistochemistry staining. Immuno-positive cells were identified as gMSCs. Three gMSCpopulated areas in each sample were selected to determine the density of gMSCs.
    Results. The density of gMSCs was significantly higher (PConclusion. Local inflammatory status appeared to increase the density of gMSCs. In the presence of periodontitis, an added low-grade systemic inflammation (T2DM) did not appear to affect the density of gMSCs.
    Keywords: Type II diabetes mellitus, gingivitis, immunohistochemistry, mesenchymal stem cells, periodontitis
  • Mahdi Faraji, Andre Van Zyl Pages 67-72
    This case report describes the clinical application of the coronally advanced flap procedure associated with the subepithelial connective tissue pedicle graft with palatal tunneling for the reconstruction of interproximal papillae. In this modified technique the distal end of the pedicle graft was divided into two parts, creating a bifid, which were then placed around the abutment and sutured on the facial aspect. This technique resulted in the filling up of the entire black triangle, coverage of gingival recessions on adjacent teeth, a significant improvement in the emergence profile of the implant-supported restoration, and obvious esthetic improvement.
    Keywords: Dental implants, connective tissue grafts, pedicle flap, dental papilla, gingival recession
  • Ramanarayana Boyapati, Kotya Naik Maloth, Sam Sunder Salvadi Pages 73-76
    Pyogenic granuloma (PG) is a reactive inflammatory hyperplastic oral lesion in response to local irritants. It is the most commonly occurring and a well-known oral lesion by oral physicians that most commonly affects gingiva, followed by lips, buccal mucosa, palate and tongue. “Pyogenic granuloma” term itself is a misnomer. This article presents a report of 2 cases of pyogenic granuloma of the gingiva and their management with a review of literature and also discusses why the term “pyogenic granuloma” is a misnomer.
    Keywords: Hyperplastic lesion, lobular capillary hemangioma, misnomer, pyogenic granuloma