Background/Aim. Treatment of periodontitis undergoes several treatment phases. Non-surgical periodontal treatment (NSPT) represents the basic treatment stage, and it is applied to all the patients undergoing periodontal treatment. Adjunctive antimicrobial photodynamic therapy (aPDT) is one of several contemporary and relatively new possibilities with a role to inactivate microorganisms responsible for the occurrence and progression of the disease. The aim of this study was to comparatively analyze the clinical and microbiological effects of the NSPT alone, as well as combined with aPDT. Methods. A split-mouth method design was used in a prospective randomized controlled trial. The following clinical parameters were registered and monitored: plaque index (PI), bleeding on probing, probing depth (PD), and clinical attachment level (CAL). The presence of microorganisms Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, and Treponema denticola was detected by the polymerase chain reaction (PCR) method. Samples were tested before the therapy, as well as three months after the therapy. Therapeutic modalities of NSPT and NSPT with adjunct aPDT were examined. Results. All of the analyzed clinical parameters proved statistically significant improvement after the application of both treatment modalities (p < 0.001). Microbiological analyses showed that the total number of microorganisms was statistically significantly lower after the application of both methods (p < 0.001). Following the treatment, there was a statistically significantly reduced number of microorganisms Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, and Treponema denticola (p < 0.001). NSPT combined with aPDT led to a statistically significant improvement of both clinical parameters and microbiological status compared to NSPT applied on its own. Conclusion. The study showed improvement of all clinical indicators after the application of both treatment modalities. The total number of microorganisms was reduced as well as the number of specific microorganisms. Combining aPDT with NSPT led to a statistically significantly higher reduction in the number of microorganisms compared to NSPT alone.
SummaryBackground:Cone Beam Computer Tomography (CBCT) is representing a new concept of radiological diagnostics and its application occupies a special place in implantology. Today, preoperative planning, and quantitative and qualitative jaw bone analysis cannot be done without the use of these techniques. The latest in a series of achievements in this field is a method of making a guide for implant using a 3D printing technique. This way pre implantology planning reduces the chance of surgical complications to a minimum and allows installation of dental implants in the most optimal position for future prosthetic work. Aim: To show benefits of guide implantation in clinical practice.Case report:The patient M.D. 36 years old. After making CBCT there was a qualitative and quantitative analysis of bone tissue, after which we decided to install five implants in positions #36, #37, #45, #46 and #47. The software appliance made virtually implants in the most optimal positions; treatment plan was forwarded by the internet connection into the DICOM format to Simplant Company, along with a folder of scanned plaster models in order to develop a guide. A few days later, after approval sent, we received the guide. Preparation by the pilot bur we did through transmucosal plum of the guide, and then we continued the classic flap surgery technique. Control footage shows the optimal position of the implant from both surgical and prosthetic aspects.Conclusion: Application guide implantology represents a safe and modern method that provides ability of implant placement in optimal positions in terms of future prosthetic rehabilitation.
Background/Aim. This study aimed to examine the correlation of CBCT analysis derived bone density with primary stability value. Methods. Clinical prospective experimental study was conducted in 38 healthy patients missing one tooth in the lateral region. It was planned to install Bredent Blue Sky Narrow self-taping dental implants with dimensions 3.5 x 10 mm. During preoperative preparation, a CBCT scan was performed on Planmeca apparatus, followed by pre-implantation measurements and planning in the CBCT apparatus software (Romexis). The mean value of the average bone volume is automatically generated and expressed in Hounsfield units. Upon implant placement, we performed measurements of the primary implant stability using Osstell apparatus. Results. Of the thirty-eight patients included in the study, there were 68.4% male patients and 31.6% female patients. The arithmetic mean of the measured bone density of all subjects in the study amounted to 536.2 HU. The arithmetic mean of dental implant primary stability for all subjects in the study was 68.7 ISQ. There is statistically significant strong positive connection between HU and ISQ (r = 0.744, p <0.001). Higher HU values are connected to higher ISQ values. In the multivariate linear regression model, statistically significant predictors of higher ISQ values are as follows: male (B = 4.669; p = 0.047) and higher HU values (B = 0.032; p <0.001). Conclusion. We have shown in our clinical study that there is a statistically significant strong positive correlation between the bone density expressed in HU units measured in the software of the CBCT device and the primary stability of dental implants expressed in ISQ units.
Viminacium, Stari Kostolac, Srbija LAT 44 o 44' 09'' / LONG 21 o 12' 42'' ABSTRAKTZaštitnim arheološkim radovima na lokalitetu Rit prethodila su obimna geofi zička istraživanja. Rezultati dobijeni ovim radovima omogućili su detaljno planiranje iskopavanja i postavljanje sondi. Na prostoru koji je površine 4 hektara, defi nisan je prazan prostor, a istraživanje usmereno na otkriveni kompleks objekata. Saznanja dobijena arheološkim iskopavanjem potvrdila su i dopunila interpretaciju geofi zičkih rezultata i postavila standarde za buduća istraživanja.
Primary implant stability appears to be a prerequisite for successful osseointegration of dental implants. Different factors may contribute to initial implant stability, and these include implant design, surgical technique and bone quality. The aim of this study was to determine the effect of different macro design on primary stability, and the evaluation of primary stability relative to the percentage contact surface of the implant and bone. The research was conducted in vitro, with pig ribs as analogue of human bone (cortical thickness 2 mm, non-self taping implants Nobel Biocare Replace 3.5x10 mm and self-tapping implants Bredent 3.5x10 mm. The primary stability was measured with Osstell mentor instrument and Student's t-test was used for statistical data processing. The average value of primary stability after three measurements with 5mm contact of bone and non-self tapping for Nobel Biocare is 30 ISQ. In self-tapping Bredent implants, the ISQ values were 42 ISQ. When the contact with the bone was on 10 mm, the following average values of primary stability were recorded: Nobel Biocare 70 ISQ, and Bredent 72 ISQ. Chisquare test (p < 0.05) showed that there is a statistically significant difference in the values of primary stability in implants with different designs. Implant design plays an important role in achieving adequate primary stability. In this study, there were statistically significant higher values of primary stability recorded in selftapping compared to non-self-tapping implants at the 5mm depth, thus recommending it for immediate placement.
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