فهرست مطالب

  • Volume:8 Issue: 4, 2019
  • تاریخ انتشار: 1398/08/10
  • تعداد عناوین: 8
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  • Bardia Vadiati Saberi, Golpar Radafshar, Fatemeh Masoumi, Michael Ghojogh, Shirin Modabbernia* Pages 1-6
    Introduction

    According to investigators’ findings, pain after periodontal flap surgery is a common occurrence so that its control is very important in the treatment procedure. Although Ibuprofen is the most common drug for the pain control in dentistry, this drug has its own side effects. The purpose of this investigation is to compare the prophylactic and post operation effect of ginger; Zingiber Officinale (Zintoma) and Ibuprofen on the pain after surgical treatment of periodontal flap.

    Materials and Method

    The samples of this study were collected from 46 patients attending the dental clinic in Guilan University of Medical Sciences, Rasht, Iran. Patients were classified into three groups. The first group received placebo, the second group received Ibuprofen and the third group received Zintoma. The amount of pain were recorded by two main measurement criteria of VAS and VRS at different times and then the data were analyzed using SPSS21. P value was considered <0.05.

    Results

    12 hours after surgery, most patients in Ibuprofen group (n=39) and Zintoma group (n=36), reported no pain while, most patients in placebo group (n=25), reported less pain. Statistical analysis shows that the Zintoma group had significantly more effect on pain.

    Conclusion

    It seems that Zintoma has almost the same impact of Ibuprofen in reducing the pain. While it has less side effects, it is better to use it as an analgesic drug in controlling the pain after periodontal flap surgery.

    Keywords: Pain, Ibuprofen, Ginger, Zingiber officinale
  • Javaneh Vejdani, Atousa Janeshin*, Faegheh Gholinia, Faezeh Alinejad Roudsari, Dina Maleki Pages 7-12
    Introduction

    Knowledge of the distribution of different malocclusions in a geographic location could help orthodontics better know the problems in that region. Moreover, giving awareness about the problem and treatment possibilities can help people. This study aimed to determine types of malocclusion and dental caries in children aged 11 to 14 years in Roudsar, Iran.

    Materials and Methods

    In this cross-sectional study, 114 healthy children aged 11-14 years were randomly selected from five schools in Roudsar. To evaluate the prevalence of dental caries and the types of malocclusion, DMFT index and Angle classification were used, respectively. Overjet, overbite, and crowding were secondary assessed. After collecting the information, data was analyzed by SPSS21 using chi-square and t-test. The level of significance was considered less than 0.05.

    Results

    The prevalence of normal occlusion was 9.3%, cl I malocclusion was 32.7%, cl II div 1 malocclusion was 16.8%, cl II div 2 malocclusion was 4.7%, and cl III malocclusion was 15.9%. The mean DMFT in the children studied was 4.369±2.317. There was a significant difference between DMFT index and gender (P=0.027). There was no significant difference between different types of malocclusion and normal occlusion by gender.

    Conclusion

    The mean of DMFT index was significantly higher in males compared to females. The most common malocclusion was cl I malocclusion and there was no significant relationship between the types of malocclusion and dental caries. Also, no relation was found between gender and malocclusion.

    Keywords: malocclusion, Dental Caries, Child
  • Ali Baghalian, Seyedeh Hediyeh Daneshvar*, Hastia Maleki Pages 13-17
    Introduction

    Composite resins undergo microleakage due to polymerization shrinkage particularly when located in enamel free margins. The purpose of this study was to assess and compare the  microleakage of two nanohybrid  flowable composites and resin modified glass ionomer in class V restorations of primary mandibular second  molars.
     

    Materials and Methods

    This in vitro, experimental study was conducted on 30 primary mandibular second  molars which were randomly divided into three groups. Standard class V cavities were prepared and restored with Grandio flow in Group A, G-aenial universal flow in Group B and RMGI in Group C. The restored teeth underwent 3000 thermal cycles between 5–55°C and then immersed in1M silver nitrate solution for 24 hours. The samples were sectioned buccolingually and degree of dye penetration was evaluated by stereomicroscope at ×10 magnification. Mann-Whitney U test and Paired T-test were used to analyze the data.
     

    Results

    In occlusal margin, there was no significant difference between three groups but at gingival margin, Grandio flow demonstrated significantly lower microleakage than G-aenial universal flow (P=0.002). There was not significant difference between Grandio flow and RMGI and also between RMGI and G-aenial universal flow (P>0.05).

    Conclusion

    Grandio flow is effective for decreasing the microleakage on enamel free margins.

    Keywords: Dental Leakage, Flowable Composite, Glass Ionomer Cements, Tooth Diseases, Composite Resins
  • Yousef Jahandideh, Amirreza Hendi, Yasamin Babaee Hemmati, Mehran Falahchai* Pages 18-28

    Dental implants, as a result of their excellent success rates and advantages over fixed or removable methods, have become the optimal treatment for replacing missing teeth. Surgical and restorative techniques that can reduce the loss of hard and soft tissues that often accompany implant placement are desirable. Achieving an esthetic outcome in tooth replacement and implant treatment requires a proper tooth shape and stable surrounding soft tissue profiles. This article introduces the several techniques of manipulating the soft tissue contours management so that optimal emergence profiles and increased restorative flexibility can be achieved in the treatment of patients and discusses the importance of soft tissue’s condition surrounding the implant site.

    Keywords: Dental Implants, Soft Tissue Injuries, Tooth Extraction
  • Reza Tayefeh Davalloo, Maryam Tavangar, Faride Darabi, Fateme Moosazade Hassan Kiadeh* Pages 29-33

    Macrodontia is a rare but cosmetically challenging dental anomaly. The following case report is described of a young girl with macrodontia central incisors who was treated with direct composite veneer and gingival color composite. The aesthetic outcome was satisfactory without unnecessary loss of teeth.

    Keywords: Dental Esthetics, Tooth Abnormalities, Conservative Treatment
  • Seyed Hadi Hosseini, Safa Motevasseli, Kiameher Yektan Sani, Donya Maleki* Pages 34-39
    Introduction

    To achieve the best esthetic and functional results of implantation and patient satisfaction, different protocols of implant therapy have been recommended. Immediate implantation can provide the outcome faster than other protocols making it the treatment of choice. The rate of peri-implant bone resorption should be measured clinically and radiographically as bone support is a key factor in success of implant.

    Materials and Methods

     24 patients suitable for immediate implantation were selected. After atraumatic tooth extraction, the implant was placed and alveoloplasty was performed to reduce the implant-bone gap. A panoramic radiography was prepared 10 days after surgery and 3 months later on the day of healing cap insertion. The marginal bone loss was measured by subtractive technique. The clinical evaluation was done in same appointment by caliper. The software used for statistical analysis was SPSS 24.

    Result

    The rate of bone resorption in radiographic evaluation was 0 to 0.30 mm whereas bone resorption was clinically reported at 0 -1 mm. Finally, the Paired T test showed no statistically significant difference (P = 0.296), but there was a positive and significant correlation (P = 0.026, R = 0.453), also the success rate in the evaluation of the results of the implant surgery was 100%.

    Conclusion

    Based on the findings of this study, both methods for measuring bone analysis after implantation were acceptable and had a significant correlation. Therefore, the use of the less invasive method of radiological evaluation is recommended as a two-stage panoramic method.

    Keywords: Immediate Dental Implant Loading, Alveoloplasty, Radiography, Panoramic
  • Mehdi Mohamadi*, Zahra Salmani, Maryam Zohary, Amirhossein Toghrolian Pages 40-46
    Introduction

    Oral Squamous Cell Carcinoma (OSCC) is an invasive neoplasm with a high prevalence. Matrix Metalloproteinase (MMP) has been thought to play an important role in both the invasion and metastasis of tumors. The aim of this study was to explore the significance of MMPs expression in clinical outcome of these patients.

    Materials

    The most recognized data Bases such as PubMed, Google scholar, etc  were searched using keywords as OSCC, MMP, prognosis, clinical outcome, stage and other related ones During 1999 to 2019.

    Result

    Among 24 reviewed in this study, MMP-9 was reported in association with invasion, metastasis recurrence, prognosis and patient survival in 7 ones but in no association with survival in only 1 research. Also, it is reported MMP-2 incorporation with poor differentiation, invasion and metastasis of OSCC in 5 studies, MMP-7 in relation with biological behavior, invasion and metastasis in 3 ones, MMP-1and 10 as indicators of OSCC cancer risk and also potential oral cancer markers in 2 studies, MT1-MMP in association with prognosis and patient survival in 3 research and in relation with invasion and metastasis in only 1 study. 3 studies suggested MMP family was associated with prognosis and metastasis of OSCC. MMP 28 and 12 were also evaluated in 2 studies and researches could not find any correlation with them and any clinical evaluated parameters.

    Conclusion

    MMP 2, 7&9 is considered to have relation with clinical outcome but MMP 1 & 10 might be related to early consequences occurred in this field as indicators for initiation of OSCC.

    Keywords: Matrix Metalloproteinase, Mouth Mucosa, Treatment Outcome, Prognosis, Carcinoma
  • Seyedeh Maryam Tavangar, Reza Tayefeh Davalloo, Farideh Darabi, Nikoo Azizi, Zahra Atrkar Roushan, Sanaz Azizi* Pages 47-54
    Introduction

    One-bottle light-cured adhesives systems have variable pH. In addition to ease of use, universal adhesives can be used in various restorations and different substrates. Due to the lack of studies, the purpose of this study was to compare the enamel and dentin micro-leakage of self-cure and light cure composite restorations using a universal bonding system.

    Materials & Methods

    The CL V cavities prepared on 60 bovine incisors (dimensions of 5 mm mesio-distal, 2 mm occluso-gingival and 1.5 mm in depth). Occlusal and gingival margins were 1mm above and below the CEJ. All Bond Universal bonding agent was applied to the cavities according to the manufacturer's instructions by selective etch method. The teeth randomly divided into group 1 which were restored with Master-Dent self-cure composite and group 2 restored with light cure AELITE All-Purpose composite. After thermocycling, the micro-leakage rates evaluated in two occlusal and gingival margins by stereomicroscope. The Mann-Whitney U test used to compare the micro-leakage (P ≤ 0.05).

    Results

    The rate of micro-leakage at both gingival (dentin) (p ≤ 0.035) and occlusal (enamel) (P ≤ 0.015) margins in the self- cure composites were significantly higher than the light cure composites. In each group, gingival micro-leakage was also recorded higher than the occlusal (however, this difference was not statistically significant in the self-cure composite group) (P = 0.474).

    Conclusion

    According to the results, the All Bond Universal adhesive agent is not compatible with self-cure composite and can result in increased micro-leakage.

    Keywords: Dental Leakage, Self-Curing of Dental Resins, Light-Curing of Dental Adhesives