research centers


Search results: Found 4

Listing 1 - 4 of 4
Sort by

Article
Radiological Assessment of Mandibular Retromolar Canal (MRMC) Using CBCT-Radiographs in a Sample of Iraqi Patients

Authors: Jamal Abid Mohammed جمال عبد محمد --- Zainab H. Al-Ghurabi زينب الغرابي
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2016 Volume: 28 Issue: 3 Pages: 99-103
Publisher: Baghdad University جامعة بغداد

Loading...
Loading...
Abstract

Background: Because of its clinical and surgical importance and lack of precise information about this rare andimportant anatomical landmark, this study was designed to detect the presence, configurations and length ofMandibular Retromolar Canal (MRMC) with aid of CBCT visualization.Materials and methods: In this retrospective study the data was obtained from Specialist Health Center in AL-Saddercity in Baghdad for (100) patients with 200 inferior dental canal, all of them referred to CBCT scan (Kodak 9500,French origin). The scanning was done with tube voltage 90 kVp, tube current with 10mA and exposure time was 10s., the field of view was measured with 5cm x 3.7cmwith 0.03mm voxel sizeResults: In the present study the prevalence of MRMC was 12% , 2 patients have ( two ) bilateral MRMC and 10patients have a unilateral canal, there was asignificant difference between two sides (left and right), the right sidewas 64.29% and left 35.71%, regarding to gender also there was a significant difference , female 33.3% and male66.7%. In this study there were three types of MRMC and there was a significant difference between them, the meanlength (hight) was 11.78 mm and mean horizontaldistance from canal to distal surface of the second molar was 18.5mm.Conclusions: MRMC also detectedin this study within the global percentage and configurations and should betaken with consideration in oral surgical procedures and radiological interpretations.


Article
Immediate Implant Placement in Fresh Extraction Socket

Authors: Mohammed Majid Abdulmunem محمد مجيد عبد المنعم --- Jamal Abid Mohammed جمال عبد محمد
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2016 Volume: 28 Issue: 4 Pages: 103-110
Publisher: Baghdad University جامعة بغداد

Loading...
Loading...
Abstract

Background: In the traditional protocol, the patient should wait after extraction up to six months to place the dental implant in healed bone, this waiting time accompanied by varying degrees of alveolar bone changes. In order to overcome these problems, immediate implant placement in the fresh extraction socket was introduced. The Aim of this study was to evaluate the outcome of the immediate implant placement utilizing Resonance Frequency Analysis (RFA) to quantify implant stability and osseointegration.Materials and Methods: A total of (23) patients participated in the study, receiving (44) implants placed in the sockets of teeth indicated for extraction. Clinical and radiographic preoperative assessment was accomplished for each patient, β-TCP (combined with collagen membrane) was used to fill gaps ≥ (2 mm) and to repair bone defects. Implant stability quotient (ISQ) values were measured for the implants at baseline and at 16 weeks. Postoperative clinical and radiographic evaluation was applied for each patient.Results: A total of (22) patients received (41) implants completed the follow-up period, all these implants survived (100% survival rate) with no signs and symptoms of failure. The mean of ISQ value at baseline was (65.32±9.50), the mean of ISQ value at 16 weeks was (69.78±7.15), paired samples statistic showed high significant increase in the implant stability (P<0.01). Application of guided bone regeneration (GBR) showed no significant difference on ISQ value at baseline and at (16 weeks), but ISQ values increased significantly in GBR cases during the healing period.Conclusions: Immediate implant placement is a predictable treatment approach; it has the benefit of reducing treatment time and the numbers of surgical procedures when careful preoperative examination and appropriate intraoperative protocol is applied.


Article
Evaluation of Osseointegration of Dental Implants Prepared by Piezosurgery (Clinical Study)

Authors: Younus Jabbar Jiheel يونس جبار جحيل --- Jamal Abid mohammed جمال عبد محمد
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2017 Volume: 29 Issue: 1 Pages: 96-103
Publisher: Baghdad University جامعة بغداد

Loading...
Loading...
Abstract

Background: Piezosurgery device is a system developed recently to overcome the limitation of the traditional surgical technique in implant site preparation, which use the principle of ultrasonic microvibrations to create precise & selective cut in bone in harmony with the surrounding tissues. The aim of this study was to evaluate the outcomes of implants inserted by ultrasonic implant site preparation protocol (UISP) using piezosurgery device, regarding the survival rate, stability and other related factors, at 16 weeks postoperative follow up period.Materials and Methods: A total of (24) patients, (6) males and (18) females, aged between (19-51) years old, contributed in this study receiving a total of (42) implants, all of these implants bed were prepared by means of special tips mounted in piezosurgery device. For each patient thorough clinical and radiographical preoperative assessment was applied. Implant stability quotient (ISQ) values were measured at baseline, 8 weeks and at 16 weeks. Postoperative clinical and radiographic evaluation was applied for each patient for 16 weeks postoperatively.Results: (24) patients received (42) implants accomplished the follow-up period, After 16 weeks all implants (42) were osseointegrated and the overall implants survival rate was 100% with no failure and no complication was observed. The mean ISQ value at baseline was (74.32±6.42), the mean ISQ value at 8 weeks was (72.62±9.05) and at 16 weeks the mean ISQ (±SD) value was (76.68±7.35) the changes in the mean stability during the healing period showed significant increase in the implant stability (P≤0.05). At the 16th week the number of implants that achieved ISQ≥70 was 35 (83.3%), and 7 implants attained ISQ> 70 (16.7%).Conclusions: high and significant survival rate, significant secondary stability, early positive shifting of the mean ISQ value, no remarkable complications in implants inserted by ultrasonic implant site preparation indicated that piezosurgery is a reliable alternative and safe method used in dental implant osteotomy


Article
Determination of Implant Primary Stability: A Comparison of the Surgeon’s Tactile Sense and Objective Measurements

Authors: Bakir Ghanim Murrad بكر غانم مراد --- Jamal Abid Mohammed جمال عبد محمد
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2017 Volume: 29 Issue: 4 Pages: 65-71
Publisher: Baghdad University جامعة بغداد

Loading...
Loading...
Abstract

Background: Evaluation and measurement of primary stability could be achieved by several methods, including the resonance frequency analysis (RFA) and implant insertion torque (IT) values. The need for a sufficient primary stability, guaranteed by an adequate insertion torque and implant stability quotient values, increased its importance mainly in one stage implants or in immediate loading protocols. The aims of this study was to find if there is a correlation between the peak insertion torque (PIT) and ISQ values of implants inserted in the jaws of different bone quality which regarded as two important clinical determinant factors for prediction of implant primary stability, and to evaluate and compare whether an experienced clinician could precisely predict the primary stability of an implant on insertion with different surgical procedures using his own tactile perception.Materials and methods: A total of (60) Iraqi adult patients, (28) males and (32) females, age ranged (22-66) years old were enrolled in this clinical prospective study. The maximum torque value recorded on implant insertion using calibrated manual torque ratchet adopting three categories: low (10 to 30 N/cm), medium (30 to 50 N/cm), and high insertion torque (50 to 70 N/cm). The oral surgeon was asked to indicate the perceived ISQs values according to his perception then Implant stability quotient were measured by Osstell ™. Bone density (type) was determined according to subjective bone resistance encountered while drilling as proposed by Lekohlm and Zarb.Results: A total of 160 implants were inserted. The mean peak IT value was 49 ± 2.61N/cm. The mean ISQ value was 71.7 ± 8.86. Statistical analysis show a significant correlation between ISQ values and PIT values (P<0.001) , between IT values and bone types and between perceived primary stability and actual primary stability (P<0.001) .Conclusions:The corresponding significant correlations between insertion torque, and ISQ values may help clinicians to predict primary stability on implant insertion, that may be associated with implant survival and success rates. A moderate reliability (correlation) between perceived ISQ values and those measured using RF analyzer(Ossttel device).

Listing 1 - 4 of 4
Sort by
Narrow your search

Resource type

article (4)


Language

English (4)


Year
From To Submit

2017 (2)

2016 (2)