scholarly journals Retrospective Clinical Study of a Freely Removable Implant-Supported Fixed Dental Prosthesis by a Microlocking System

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Eun-Bin Bae ◽  
Won-Tak Cho ◽  
Hyun-Young Bae ◽  
So-Hyoun Lee ◽  
Tae-Hyung Kim ◽  
...  
Keyword(s):  
Clinical Study ◽  
Survival Rate ◽  
Bone Resorption ◽  
Treatment Method ◽  
Fixed Dental Prosthesis ◽  
Probing Depth ◽  
Retrospective Clinical Study ◽  
Significant Difference ◽  
Implant Prosthesis ◽  
Observation Period

This retrospective clinical study was conducted to evaluate the clinical usefulness of a freely removable microlocking implant prosthesis (MLP) that was developed to overcome the problems with conventional implant prostheses. A total of 54 patients (male: 31, female: 23) and 100 implant prostheses were included. Patients were divided into three groups such as 6-12 months, 12-18 months, and 18-24 months according to the used period after implant prosthesis delivery, and the patients in each group were recalled for examinations of survival rate, marginal bone resorption, peri-implant soft tissue indices, and complications. The prosthetic complications were analysed by combining the recorded chart data during the periodic checks including the last call for this study. During a 2-year observation period, all the implants showed a 100% survival rate without clinical mobility and functional problems. There was no significant difference in marginal bone resorption, plaque index, and bleeding index over the observation period after implant prosthesis delivery. Probing depth of the 18-24 months group ( 1.5 ± 0.19   mm ) was significantly lower than that of the 6-12 months group ( p < 0.05 ). The main complication was abutment loosening (4%), followed by implant prosthesis fracture (2%) and food impaction (2%) which were recorded. Within the limits of the present study, the implant prostheses with MLP are considered to be an applicable and predictable treatment method.

scholarly journals Technical and Biological Complications of Screw-Retained (CAD/CAM) Monolithic and Partial Veneer Zirconia for Fixed Dental Prostheses on Posterior Implants Using a Digital Workflow: A 3-Year Cross-Sectional Retrospective Study

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Paolo De Angelis ◽  
Giulio Gasparini ◽  
Francesca Camodeca ◽  
Silvio De Angelis ◽  
Margherita Giorgia Liguori ◽  
...  
Keyword(s):  
Survival Rate ◽  
Cross Sectional ◽  
Digital Workflow ◽  
Fixed Dental Prosthesis ◽  
Significant Difference ◽  
Cad Cam ◽  
Study Population ◽  
Clinically Significant ◽  
Technical Complication ◽  
Ceramic Restorations

Objective. The introduction of CAD/CAM and the development of zirconia-based restorations have allowed clinicians to use less expensive materials and faster manufacturing procedures. The purpose of the study was to analyze the differences, in terms of mechanical and biological complication, in multiunit zirconia fixed dental prosthesis (FPDs) on posterior implants produced using a digital workflow. Method and Materials. This study was a retrospective investigation, and patients treated with screw-retained monolithic or partial veneer FPDs on dental implants were selected. Periapical radiographs were taken at baseline and at the 3-year follow-up. Complications were recorded and classified as technical and biological ones. Results. The study population included 25 patients. The occlusal and interproximal corrections were not clinically significant. In the study sample, the survival rate and success rate of the FPDs after 3 years were 100% and 96%, respectively. One implant failed immediately after placement. Conclusion. Monolithic zirconia FPDs and partial veneer FPDs showed a 100% survival rate, presenting an interesting alternative to metal ceramic restorations. The partial veneer FPDs had a higher technical complication rate than the monolithic FPDs; however, no statistically significant difference was found.

scholarly journals CERVICO-FACIAL HEMANGIOMAS; THE TREATMENT THAT ELUDES US

2011 ◽  
Vol 01 (01/03) ◽  
pp. 02-09 ◽  
Author(s):  
S.M. Sharma
Keyword(s):  
Clinical Study ◽  
Surgical Treatment ◽  
Tumor Growth ◽  
Treatment Modality ◽  
Combined Treatment ◽  
Skin Changes ◽  
Retrospective Clinical Study ◽  
Significant Difference

AbstractCervicofacial hemangiomas treated from January 2001 to December 2009 was clinically evaluated. This retrospective clinical study consisted of 42 females and 20 males with the age ranged from 20 days to 55 years. The lesions were present with-in first month in 45 patients (72.6%). Two patterns of tumor growth were evident: focal and diffuse. There were 59 focal hemangiomas (80.8%) and 14 diffuse hemangiomas (19.2%). Complications noted at the time of first consultation include residual skin changes in the in 35 patients (56.5%), obstruction of orifices in 14 patients (22.6%), ulceration in 6 patients (9.7%), and infection occurred in 2 patients (3.2%). Overall, there is reduction in size and improvement in color and texture of lesion following intervention in each group. No significant difference in outcome was observed in between groups with respect to change in size and texture. However, improvement in color showed statistically significant difference and combined treatment modality and surgical treatment was found to be better.

scholarly journals Incidence of periodontal compromise in teeth indicated for undergoing endodontic treatment: A clinical study

2018 ◽  
Vol 12 (03) ◽  
pp. 334-337
Author(s):  
Ricardo Machado ◽  
Monique Muniz da Cunha ◽  
Daniel Comparin ◽  
Leopoldo Cosme-Silva ◽  
Eduardo Donato Eing Engelke Back ◽  
...  
Keyword(s):  
Clinical Study ◽  
Female Gender ◽  
Male Gender ◽  
Endodontic Treatment ◽  
Chi Square ◽  
Periodontal Status ◽  
Probing Depth ◽  
Significant Difference ◽  
Chi Square Test ◽  
Level Of Significance

ABSTRACT Objective: The aim of this study was to evaluate the periodontal status of teeth indicated for undergoing endodontic treatment. Materials and Methods: Two hundred and nine teeth were evaluated using probing depth tests at three vestibular and three palatine/lingual sites before the patients underwent treatment. Teeth that presented up to 3-mm probing depth were considered as healthy. Those that presented at least one site with probing depth >3 mm were considered periodontally compromised. The data were statistically analyzed by means of applying the Chi-square test, with a level of significance of 5%. Results: Of the total of 209 teeth evaluated, 40 (19.10%) presented periodontal compromise. There was statistically significant difference related to the compromised teeth of patients of the female gender (22.80%) compared with teeth of patients of the male gender (12.30%) (P < 0.05). Conclusions: Fewer than 20% of the teeth evaluated presented a periodontal compromise. Patients of the female gender presented a higher number of periodontally compromised teeth than patients of the male gender.

scholarly journals Peri-Implant Bone Loss at Implants Placed in Preserved Alveolar Bone Versus Implants Placed in Native Bone: A Retrospective Radiographic Study

2018 ◽  
Vol 12 (1) ◽  
pp. 529-545 ◽  
Author(s):  
Johann Bui Quoc ◽  
Aurélie Vang ◽  
Laurence Evrard
Keyword(s):  
Clinical Study ◽  
Bone Loss ◽  
Alveolar Bone ◽  
Control Group ◽  
Radiographic Study ◽  
Platelet Concentrates ◽  
Native Bone ◽  
Retrospective Clinical Study ◽  
Significant Difference ◽  
Edentulous Patients

Objectives: The aim of our study was to compare peri-implant bone loss at implants placed in alveolar sockets filled with a particulate allogenous bone graft (DFDBA 300-500 µm) and platelet concentrates versus at implants placed in the native bone. Materials and Methods: A retrospective clinical study was performed. A total of 84 patients were included with 247 implants for the restoration of mono and pluri-radicular teeth: 169 implants in native bone and 78 in socket-grafted bone. The peri-implant bone loss was measured by 2 independent operators at 6 and 12 months. Results: The overall mesial and distal peri-implant bone losses were 0.9 ± 0.7 mm and 0.9 ± 0.8 mm at 6 months, respectively, and 1 ± 0.65 mm and 1.2 ± 0.9 mm at 12 months, respectively. In the tested group, the bone loss was 0.8 ± 0.8 mm at 6 months and 1.2 ± 0.9 mm at 12 months. In the control group, the bone loss was 1.0 ± 0.7 mm at 6 months and 0.95 ± 0.6 mm at 12 months. There were no statistically significant differences in bone loss between the two groups. Taking both groups together, there were no statistically significant difference in bone loss between patients with or without histories of periodontitis, but there was a statistically significant difference in bone loss between the mandible and maxilla as well as between unitary and total edentations and between partially and total edentulous patients. Conclusion: At 6 and 12 months, the peri-implant bone loss in sockets preserved with DFDBA and platelet concentrates was similar to the peri-implant bone loss in native bone.

scholarly journals The safety and efficiency of retroperitoneal laparoscopic adrenalectomy via extra and intra perinephric fat approaches: a retrospective clinical study

BMC Surgery ◽  
2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Xuejian Wang ◽  
Junqiang Liu ◽  
Aozhang Ji ◽  
Changli Liu ◽  
Sony Nahayo ◽  
...  
Keyword(s):  
Clinical Study ◽  
Laparoscopic Adrenalectomy ◽  
Vena Cava ◽  
Postoperative Management ◽  
Organ Injury ◽  
Adrenal Tumors ◽  
Retrospective Clinical Study ◽  
Significant Difference ◽  
Post Operation ◽  
Perinephric Fat

Abstract Background This retrospective clinical study is to evaluate the safety and efficiency of two different approaches in retroperitoneal laparoscopic adrenalectomy and provide experience and basis for the treatment of adrenal tumors through retroperitoneal approach. Methods From July 2015 to February 2018, 112 patients with adrenal lesions underwent retroperitoneal laparoscopic adrenalectomy (RLA) using a 3-port method. Among them, 56 patients underwent RLA via the extra perinephric fat approach (EPFA), 56 patients underwent RLA via the intra perinephric fat approach (IPFA). Clinical data, including preoperative, operative and postoperative management were recorded. Results All surgeries were successfully completed, and there was no single patient who died during these surgeries. There was no statistically significant difference between the two groups in blood loss, postoperative complications, vena cava injury, renal cortex injury, peripheral organ injury, and post operation hospital stay. Peritoneum injury occurred more frequently in the EPFA group when compared with the IPEA group (p = 0.042). The average surgery time of the IPEA group is significantly shorter when compared with that of the EPEA group (p < 0.001). Due to serious saponification of the perinephric fat and heavy adhesion to renal fascia, three cases in IPFA group were converted to the EPFA surgery. Conclusion RLA is a safe and effective procedure both via extra perinephric fat and intra perinephric fat approaches. IPEA is superior to EPEA in terms of peritoneal injury and duration. The choice may mainly depend on the experience of the surgeon, the characteristics of the adrenal tumor and the nature of the perinephric fat.

Efficacy of Nonsurgical Mechanical Debridement With and Without Adjunct Low-Level Laser Therapy in the Treatment of Peri-Implantitis: A Randomized Controlled Trial

2020 ◽  
Vol 46 (5) ◽  
pp. 526-531 ◽  
Author(s):  
Fawaz Alqahtani ◽  
Nasser Alqhtani ◽  
Sree Lalita Celur ◽  
Darshan Devang Divakar ◽  
Abdulaziz A. Al-Kheraif ◽  
...  
Keyword(s):  
Bone Resorption ◽  
Laser Therapy ◽  
Low Level Laser Therapy ◽  
Periodontal Pocket ◽  
Low Level ◽  
Low Level Laser ◽  
Probing Depth ◽  
Level Laser ◽  
Significant Difference

We hypothesized that in the long term (6-month follow-up), nonsurgical mechanical debridement (NSMD) with adjunct low-level laser therapy (LLLT) is more effective for the treatment of peri-implantitis than NSMD alone. The aim of the present 6-month follow-up convenience-sample cohort study was to assess the efficacy of LLLT as an adjunct to NSMD in the treatment of peri-implantitis. A questionnaire was used to collect demographic information. Patients with peri-implantitis in the test and control groups underwent NSMD with and without adjunct LLLT, respectively. Randomization was done by tossing a coin. In the test group, the laser was applied perpendicular to the periodontal pocket for 20 seconds at a constant distance of 15 mm and with a continuous wavelength (3.41 J/cm2 delivery with a 1.76 cm2 spot and average output of 0.3 W). In both groups, peri-implant probing depth, bleeding upon probing, and crestal bone resorption were assessed at baseline and at the 3-month and 6-month follow-up. Group comparisons were performed, and P &lt; .05 was considered statistically significant. Sixty-seven individuals with peri-implantitis were included. The mean age of participants who underwent NSMD with adjunct LLLT and NSMD alone was 46.5 ± 3.4 and 45.3 ± 1.1 years, respectively. At the 3- and 6-month follow-up, peri-implant (P &lt; .05), bleeding upon probing (P &lt; .05), and probing depth (P &lt; .05) were significantly higher among patients who underwent NSMD alone compared with patients who underwent NSMD with adjunct LLLT. There was no significant difference in crestal bone resorption in all patients up to the 6-month follow-up. In the short term, NSMD with adjunct LLLT was a useful treatment protocol for the treatment of peri-implant soft-tissue inflammation.

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