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Intentional penetration of dental implants into the maxillary sinus: a retrospective study
الاختراق المتعمد لزراعة الأسنان في الجيب الفكي العلوي: دراسة بأثر رجعي

Author: Omed Ikram Shihab
Journal: Zanco Journal of Medical Sciences مجلة زانكو للعلوم الطبية ISSN: 19955588/19955596 Year: 2017 Volume: 21 Issue: 1 Pages: 1536-1539
Publisher: Hawler Medical Univeristy جامعة هولير الطبية

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Abstract

Background and objective: Perforation of the maxillary sinus by a dental implant isan issue of concern by many dental implant clinicians. This study aimed to assess thesuccess rate and consequences of dental implants emerging into the maxillary sinus.Methods: The maxillary sinus was intentionally perforated for dental implant placementin 35 patients with reduced posterior maxillary bone height (4 mm or more). A total of 70implants engaged bicortically and emerged into the sinus. Nineteen female and 16 malepatients were involved in the study. The patients were followed up for sinus complicationsand dental implant success.Results: From the total, only two implants were failed; one during gingival formerplacement and the other after loading by one year. No patient presented with sinusitisclinically and radiographically. Three patients developed epistaxis just on the day ofsurgery and became well after on.Conclusion: Within the limits of this study, dental implant emergence into healthymaxillary sinus is considered a safe and successful procedure.


Article
Comparison between flapless and flap dental implant surgery: A clinical and radiographic study
مقارنة بين جراحة زرع الأسنان بدون سديلة و بسديلة: دراسة سريرية وإشعاعية

Authors: Omed Ikram Shihab --- Ahmad Abdullah Haider --- Abduljaleel Azad Samad
Journal: Zanco Journal of Medical Sciences مجلة زانكو للعلوم الطبية ISSN: 19955588/19955596 Year: 2016 Volume: 20 Issue: 2 Pages: 1267-1271
Publisher: Hawler Medical Univeristy جامعة هولير الطبية

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Abstract

Background and objective: Flapless implant surgery has been suggested as a suitable treatment technique for implant placement, but limited information exists regarding the clinical conditions after flapless implant surgery. This study aimed to compare flapless implant surgery with traditional flap implant surgery clinically and radiographically.Methods: Sixty patients (23 males and 37 females) participated in the present study. The patients were divided into two groups, in the Group ‘A’ 30 implants were placed by traditional flap surgery and in Group ‘B’ 30 implants were placed by flapless implant surgery (punch technique). Clinical and radiographic examinations were carried out to assess the implants condition. Clinical examination included implant mobility which was assessed by using universal torque ratchet at the end of healing period (6 months). The periapical radiograph was carried out to assess marginal bone loss around the implants at three and six months after implantation.Results: Two implants failure were reported; one implant for each of the Group ‘A’ and ‘B’. There was no significant difference between the two groups with regard to the marginal bone resorption (P = 0.487). The success rate for both groups was 96.6%. The study showed a non-significant relation of age and gender with the success rate.Conclusion: The flapless implant surgery could offer advantages over the classic protocol and should have the potential to increase the patients’ acceptance of the procedure.


Article
Osseointegration of dental implants without primary stability: an experimental study in sheep
Osseointegration من زراعة الأسنان دون الاستقرار الأولي: دراسة تجريبية في الأغنام

Authors: Ahmed A. Haider --- Othman A. Omer --- Hozak Zahir Ali --- Abduljaleel Azad Samad --- et al.
Journal: Zanco Journal of Medical Sciences مجلة زانكو للعلوم الطبية ISSN: 19955588/19955596 Year: 2017 Volume: 21 Issue: 1 Pages: 1616-1618
Publisher: Hawler Medical Univeristy جامعة هولير الطبية

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Abstract

Background and objective: Primary implant stability is considered necessary forachieving and maintaining osseointegration. This experimental study aimed to evaluate theoutcome of implants without primary stability, clinically and radiographically.Methods: Two adult sheep (3-4 years of age), 70 kg in weight, were included in the study.After sedation and local anesthesia, the lateral side of the basal bone of mandible isexposed by a single long incision. The implant bed performed in the inferior border of thebasal bone of mandible drilling to 5 mm in diameter and 10 mm in length. Five implantswere inserted into the basal bone of mandible for each side (right and left), but the sizes ofinserted implant was 3.8 mm in diameter and 10 mm in length, after 4 months the 2 sheepwere sacrificed and the universal torque ratchet was used to measure the stability of theimplant by a counter torque 30 N/cm test. Cone Beam Tomography (CBCT) was used toevaluate the implants radiographically.Results: Nineteen (from 20) implants successfully tolerated a 30 N/cm countertorque testcomprising (95%). Only one implant failed to osseointegrate (5%). During the healingperiod, no any adverse clinical signs reported.Conclusion: Dental implants may have a chance to osseointegrate even in the lack ofprimary stability.

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