Résumé
Objective: Microbial plaque is among the main etiologies of periodontal disease, and tooth brushing with toothpaste is the most commonly used method of plaque control. This study aimed to compare the efficacy of tooth brushing with and without three different dentifrices
Methods: Thirty dental students were randomly selected to participate in this clinical trial and were asked to refrain from any plaque control measure for 24 hours. Candidates were then randomly assigned to one of the three groups of tooth brushing with Pooneh whitening toothpaste, Crest 3D White, Sensodyne Original and tooth brushing without toothpaste. Subjects were asked to brush their teeth for two minutes using the Bass technique. Plaque index was calculated before and after the intervention. This process was repeated until all subjects experienced all the understudy interventional protocols [tooth brushing with three different toothpastes and without toothpaste]. Data were analyzed by repeated measures ANOVA and paired t-test
Results: No statistically significant difference was noted in the efficacy of plaque control by tooth brushing with Crest 3D White and Sensodyne Original and tooth brushing without toothpaste; however, significant differences were noted in this respect between Pooneh toothpaste and the remaining three tooth brushing protocols [p
Conclusion: Tooth brushing without toothpaste may have a plaque control efficacy equal or even higher than that of tooth brushing with toothpaste
Résumé
Objective: Successful bonding of a dental implant to bone, which was referred to as osseointegration by Branemark has been well documented. However, long-term prognosis of an implant depends on adequate maintenance and long-term care. An effective maintenance program is required to preserve the health of peri-implant tissues. Several techniques have been suggested for this purpose; but it is not clear which is more efficient
Review of Literature: This review evaluates the literature regarding implant care and factors affecting the peri-implant soft tissue and describes the required measures for assessment of periimplant status and treatment of reversible peri-implant diseases
Conclusion: Data shows that several measures can be taken to maintain the health of peri-implant tissue and ensure the long-term prognosis of dental implants
Résumé
An ideal toothpaste should have most plaque removal efficacy with at least abrasivity. The aim of this study was to evaluate enamel abrasion induced by 12 toothpaste types including Darogar 3, Nasim, Crest 7, Crest sensitivity, whitening signal, sehat, pooneh 3 color, paveh, whitening pooneh, crest 3D white, sensodine original and pooneh sensitivity. This was an in vitro experimental study. Dental samples collected after cutting were embedded in acrylic blocks, and the enamel surface polished to be smooth. The samples were divided into six groups of twelve. The initial surface profile was measured with the profilometry device and for brushing; the samples were located in VScross brushing machine. After washing and drying the samples, the secondary surface profile was measured with the profilometry device again. The value difference before and after brushing shows abrasion of the toothpaste on single micron. Data were analyzed by means of ONE WAY ANOVA. There was no significant difference in abrasivity among different toothpastes. The highest rate and the lowest rate of abration were observed in crest sentifivity and pooneh sensivity, respectively. The abration sensitivity pooneh; rate of other toothpastes were between these two rates. According to the results it has been revealed that there were no differences among enamel abrasion of common Iranian toothpastes
Résumé
It has been demonstrated that use of plasma rich in growth factors produces a dynamic surface on the implants, which accelerates the healing process. This study undertook a histologic and histomorphometric evaluation of the effect of platelet-rich growth factors [PRGF] on the amount of bone regeneration around dental implants. In this animal-intervention study, two systemically healthy Persian mix-breed dogs were selected. Three months after extraction of the dogs' mandibular premolars on both sides, 12 implants were selected from the OIC system with a length of 10 mm and a diameter of 5 mm. Six implants were placed in the osteotomy cavities using growth factors and 6 others were placed in the osteotomy cavities without PRGF. After 12 weeks, all the implants were removed along with the surrounding bone using Trephine bur. The samples were evaluated under a light microscope subsequent to sectioning. Data were analyzed with t-test and Mann-Whitney test [? = 0.05]. The results of the present study indicated that histologically, there was a significant increase in the amount of regenerated bone around the implants; moreover, thickness and maturity of bony trabeculae were not different in the samples containing PRGF in comparison with the control samples. According to the results, implant-bone interface integration rate around dental implants coated with PRGF was higher compared to the control group