Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userA Radiographic Study of The Influence of Interimplant Distance on Crestal Bone Resorption using Euroteknika implant system
دراسة شعاعية لتأثير المسافة بين زرعات Euroteknika في امتصاص قمة النتوء السنخي
992
0 8
0
(
0
)
Created by
Shamra Editor
Ask ChatGPT about the research
خلفية البحث و هدفه: تعد المسافة بين الزرعات من العوامل المؤثرة في امتصاص النتوء السنخي بين الزرعات. و بيّنت الدراسات قدرة كل من تصميم الحلزنة العنقية الدقيقة و تصميم الإزاحة الداخلية لملتقى زرعة-دعامة في تخفيف الامتصاص العظمي حول الزرعات. و هدف البحث إلى دراسة تأثير المسافة بين الزرعات 2 ملم و 3 ملم في الامتصاص العمودي لقمة النتوء السنخي. مواد البحث و طرائقه : زرِعتْ 39 زرعة لدى 13 مريضاً ( 6 ذكور و 7 إناث) تراوحت أعمارهم بين 30-55 سنة بمتوسط قدره 43.7 سنة. زرِعتْ 3 زرعات لكل مريض في المنطقة الخلفية للفك السفلي و كانت مجموعتا الدراسة: المجموعة الأولى ذات المسافة بين الزرعات 2 ملم، المجموعة الثانية ذات المسافة بين الزرعات 3 ملم. و درس شعاعياً مقدار الامتصاص العمودي لقمة النتوء السنخي؛ و ذلك عند كشف الزرعات، بعد التعويض مباشرة، و بعد 3 أشهر تحميل .و اِستُخْدِم اختبار T ستودنت لدراسة دلالة الفروق في متوسط مقدار الامتصاص العمودي لقمة النتوء السنخي بين مجموعتي الدراسة عند قيمة P< 0.05 . النتائج: لم يلاحظ فرق جوهري في مقدار الامتصاص العمودي لقمة النتوء السنخي بين مجموعتي الدراسة، و كان متوسط مقدار امتصاص قمة النتوء السنخي عند نهاية الدراسة في المجموعة الأولى 0.48 ملم، وفي المجموعة الثانية 0.23 ملم. الاستنتاج: ضمن حدود هذه الدراسة، نستنتج أنه لا يوجد فرق جوهري بين تأثير المسافة بين الزرعات 2 ملم و 3ملم في امتصاص قمة النتوء السنخي بين الزرعات.
Background & Objective: Interimplant distance is one of the factors influencing interimplant crestal bone resorption. In addition, Several studies have shown the ability of microthreads and platform switching to minimize crestal bone resorption around implants. This study aimed at evaluating the effect of interimplant distances of 2 mm and 3 mm on the vertical resorption of interimplant bone peak. Methods & Materials: 39 implants were inserted in 13 patients ( 6 males and 7 females) whose ages ranged between 30 -55 years old with an average of 43.7 years. Every patient received 3 implants in the posterior mandible. Thus, we had tow study groups: First group where the interimplant distance was 2mm, and the second group where the interimplant distance was 3mm.The amount of vertical resorption of interimplant bone peak was measured radiographically at implant exposure, prosthesis delivery, 3 months after loading, and 6 months after loading. Statistical comparisons were performed using T student test ,and the P-value was set at 0.05. Results: No statistically significant differences were found between the 2 groups regarding the amount of vertical resorption of interimplant bone peak . The mean vertical resorption of interimplant bone peak was 0.48 mm in the first group and 0.23 mm in the second group at the end of study. Conclusion: Within the limits of this study, there are no statistically significant differences in the influence of interimplant distance of 2mm and 3mm on interimplant crestal bone resorption.
References used
Tarnow DP, Cho SC, Wallace SS. The effect of inter-implant distance on the height of inter-implant bone crest. Journal of periodontology. 2000;71:546-9
Misch CE, Strong JT, Bidez MW. Scientific Rationale for Dental Implant Design. In: CE M, editor. Contemporary Implant Dentistry. 3rd ed. St Louis: Mosby Elsevier; 2008. 200-29
Shin YK, Han CH, Heo SJ, Kim S, Chun HJ. Radiographic evaluation of marginal bone level around implants with different neck designs after 1 year. The International journal of oral & maxillofacial implants. 2006;21:789- 94
Bratu EA, Tandlich M, Shapira L. A rough surface implant neck with microthreads reduces the amount of marginal bone loss: a prospective clinical study. Clinical oral implants research. 2009;20:827-32
Nickenig HJ, Wichmann M, Schlegel KA, Nkenke E, Eitner S. Radiographic evaluation of marginal bone levels adjacent to parallel-screw cylinder machined-neck implants and rough-surfaced microthreaded implants using digitized panoramic radiographs. Clinical oral implants research. 2009;20:550-4
rate research
Read More
Is the changing of biomechanics between the tooth and implant affected on the
homogeneity of bone surrounding the tooth and implant connected with fixed prosthesis. the aim of the
study is to study the connection of bone area in both sides (mesial&distal) of tooth & implant connected
with bridge(in the form of rigid or non-rigid connection) during one year of radial observation of
radiographic bone density.
The treatment with implant overdenture is wildly spreading around the globe. The implant overdenture has become a main options when we make our treatment plan . It is spreading world wild with the improvement of implantation systems. In some cases The dentist can not place the implant in the ideal position and angulation.
Soft laser applications continue to improve local bone mineral density which is considered the most important factor in dental implant success.
This study aims to evaluate the Trabecular to Cortical bone ratio (TCr) index -as a simple easy measureme
nt index- that expresses the bone mineral density. This is to be able to predict the success of dental implants.
The study included 40 patients, who had a single implant in the lower molar region. The patients are divided into two groups: 20 patients had an implant with a soft laser application, i.e. GaAlAs laser (wavelength 830 nm), and 20 patients had an implant without a soft laser application.
Ordinary Analog periapical radiographs were used with calibration Stepwedge of pure aluminum, a medical Dijora program was used to measure radiographically local bone density in the periapical radiographs, and a panoramic Tomography was made to study TCr and two bone density indices (thickness ratio x density ratio) and (equivalent Aluminium thickness). All were measured during the period before implantation and 3, 6, and 9 months after the implantation.
The study found a strong linear correlation between the TCr and (thickness ratio x density ratio) 0.001>P, R2= 0.842 36(r = 0.8. and equivalent Aluminium thickness(
0.001> P, R2 = 0.656735, (r = 0.8).
The study shows that TCr index expresses both radiographic indices which reflect the local bone density, which means that the TCr is associated with such density. Therefore, it can be used as an easy way to predict the quality of bone, and prognosticate the success of dental implants.
The aim of the study was to evaluate the influence of the mucosal tissue thickness on the crestal bone resorption around dental implants during a year of follow-up. Nine patients of both sexes included in this study received 24 implants. Patients in
the sample were divided into two groups: group I (mucosa above 2 mm, and 12 implants), and group II (mucosa up to 2 mm, and 12 implants). Implants in each group were divided into two groups: a control where 6 implants were placed at the crest level, and a test where (6) implants were placed 2mm supracrestally. The results revealed that there was an increase in crestal bone loss in group 2 with statistically significant differences. To conclude, the initial thickness of mucosa at the time of implant placement affects crestal bone loss; increased bon loss occurs when the tissue thickness is 2 mm or less at the time of implant placement.
This study aimed to radiographically assess the effectiveness of
the synthetic graft (Easy-Graft)™ which consists of [BCP+PLGA] in preservation of alveolar bone after teeth extraction. The sample consisted of thirty extraction cases in 28 patients (
17males 11females) and was randomly divided into two groups; study group (15 cases) where the graft had been applied after extraction and the control group (15 cases). Periapical radiographs were taken immediately after extraction,and six and fifteen months later to measure the amount of bone height decrease. Data were collected by an image analysis software and statistically analyzed. As a result,
the mean bone height decrease in the control group was (0.6mm) after extraction, (2.4mm) after six months, and (3.3mm) 15 months later.Whereas it was (0.14,1.1,1.5mm) after extraction, 6months and 15months later respectively. As such, there were statistically significant differences between the different follow-up times.Thus, (Easy-Graft)™ considered an effective method for alveolar bone preservation after teeth
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
