Background and Aim: It is believed that a period of healing, approximately 3-4 months for mandible and 4-6 months for maxilla, are required to ensure osseointegration. Recently, a new method called Immediate loading of implants have been proposed. This method provides improved stability of the implant by the Immediate support of an iterim prosthesis. The aim of this study was to evaluate the success rate of the Immediate loading single OPILS dental implants.Materials and Methods: Thirty-nine patients, including 26 females and 13 males, at the minimum age of 18 and maximum age of 54 years old, received 48 OPILS dental implants. In this prospective study, all samples were non-smoking, without any systemic disease or psychological problem. In all cases, and acrylic prefabricated crown was placed Immediately after implant surgery. The definitive metal-ceramic crown was placed 2.5 months later in mandible and 5.5 months later in maxillae. Lack of pain, pus, implant immobility and less than 1mm bone loss were criteria of success.Results: The oral hygiene of females were better than males, 26 women had plaque index (0) and 11 of them had plaque index (1) where as out of 13 male subjects, 4 had plaque index (0), 6 had plaque index (2) and (3) had plaque index (3). The mean vertical bone loss, on mesial and distal parts, were less than 1mm, with the min. of 0 and max. of 0.4mm and the average of 0.2mm. All implants pass the defined criteria of success.Conclusion: On the basis of this short-term study, in single tooth cases, OPILS implants of Neo-Dent system can be loaded Immediately.

Background and Objective: Cementation of indirect restorations with resin cements does not always provide better bonding performance to dentin when compared with direct dentin bonding systems. Immediate dentin sealing was introduced to overcome this problem with some successful reports. The aim of this study was to compare the effect of Immediate dentin sealing on shear bond strength of resin to dentin.Materials and Methods: In this study, 66 human third molars were randomly divided in three equal groups: 1- Bonding composite blocks with dual cured RelyX ARC cement to dentin without pretreatment. 2- Bonding composite blocks with dual cured Rely XARC cement to Immediately sealed dentin with single bond and 3- Bonding composite blocks with dual cured Rely X ARC cement to Immediately sealed dentin with single bond and a flowable composite. Shear bond strengths were measured with a universal testing machine. Data were analysed by one-way ANOVA and Tukey statistical tests.Results: Means and standard deviations of tensile bond strengths were as follows: group 1:8.55±3.18, group 2: 6.67±2.21 and group 3: 14.07±5.02. The differences in shear bond strength between groups were different significantly only when group 3 was compared with groups 1 and 2 (P=0.000).Conclusion: Immediate dentin sealing with dentin bonding had no effect on bond strength. Use of flowable composite in combination with single bond improved bond strength.

Background: The Immediate loading (IL) protocol has gained increased popularity among surgeons in the last decade.Objectives: This study aimed to evaluate the clinical performance of microtextured single-tooth implants using IL protocol six months after loading.Patients and Methods: In this case series, SwissPlus implants (Zimmer Dental Inc, Carlsbad CA, USA) which was straight, self-tapping, 12 mm length and 4.1 mm diameter, were inserted into both jaws and single edentulous sites with clinically and radiologically healed bone by an experienced surgeon. In the test group (with IL protocol), one week after the surgery, the provisional crowns and abutments were loaded, and definitive restorations were delivered three months postoperatively. The factors including pain, mobility, probing depth (PD), bleeding on probing (BOP) and marginal bone loss (MBL) were investigated six months after the IL. The Mc Nemar and Wilcoxon tests were used for nominal variables and the paired ttest was also used for quantitative variables.Results: Twenty-five implants were placed in 23 patients at Dental School, Shahed University, Tehran, Iran. The test group included 15 patients (16 implants) treated with Immediately loaded single-tooth implants. The survival rate was 100% in both groups. In test, a significant reduction was measured in PD and pain; moreover, no statistically significant difference was noted between follow-ups with regard to mobility and BOP. The mean PD values six months for test and nine months for control after installation were 2.548 mm and 2.694 mm, respectively. Marginal bone loss was significantly decreased in the test group between the follow-ups.Conclusions: Consequently, this study shows promising results for IL of single implants, and it can be considerable that treatment with microtextured surface implants is a predictable and appropriate method of treatment.

Background and Aim: considering the limitations of conventional loading time and reported failures of Immediate load protocol and on one hand, report of an article starting the success of Sargon expandable implant system, the aim of this study was to evaluate the short-term success rate of Immediately loaded expandable implants placed in fresh extraction sockets.Materials and Methods: This quasi clinical trial study included 24 Sargon implants placed in fresh extraction sockets in 20 patients, aged from 23 to 70 years (average: 14.79 ± 13.99 years) which were Immediately provisionalized. The final restorations were delivered at 3rd week follow up if the implants were stable. Data were collected at 1, 2, 3 weeks and 1, 2, 3 and 6 months. Sex, region, bruxism and clenching and smoking status were studied as related factors. The failure rate and influence of the related factors were analyzed using Fisher's exact test.Results: Due to leak of patent compliance, 2 of the 24 implants were excluded from the study. The load was removed off of 10 implants (45.4%) that were unstable after Immediate loading, and the expansion mechanisms were reactivated for those cases. All the cases became stable later on and they were reloaded. Lower bone quality was statistically associated with a nine fold increase in risk of loosing stability (p<0.001). After a 6-month follow-up period, a success rate of 100% was reported for all implants.Conclusion: The results indicate that Immediate loading of expandable implants in fresh extraction socket can be a predictable procedure. A true clinical trial study to evaluate the efficacy of this implant over a longer follow up period is necessary.