Mhammad SALEH has graduated at the age of 26 years from Near East University faculty of dentistry and has started the PhD program in the Department ofrnProsthetic Dentistry in the same university in September of 2015.
Restorations over implant can be secured to implants with two main methods screw retained restorations and cementrnretained restorations. Purpose: To assess the advantages and reported complications of both retaining techniques ofrnimplant supported restorations. Materials and Methods: A Medline (PubMed), science direct, and Google scholar electronicrndatabase search from 2002 to January 2017 was reviewed. 105 studies were first reviewed by abstract and subsequently byrnfull-text reading. Results: The literature discuss the advantages and disadvantages of each method of retention from differentrnaspects. The cement retained restorations show better passiveness and stability where is the cement is flowable to fill the leakages. Absence of screw access hole in the cemented restoration enhance the durability, fracture resistance and balancedrnocclusion. On the other, hand the screw retained restorations provide easy access and ability to remove restoration without anyrndamage to the abutment, implant or to the preri-implant tissue. Th e absence of remaining cement around the implant preventrnthe bacterial accumulation which lead to periimplantitis. Conclusions: Since the choice of using either method of retention is still controversial. The review demonstrated that each method of retention has certain advantages and disadvantages; however, there are some clinical situations in which it is better to select one method of retention rather than the other.
Laila Azzahim has completed her Dental studies at the Faculty of Dentistry of Rabat in Morocco. She holds a university degree in Biostatistics and Methodology of\r\nClinical Research and a Post-graduate Certificate in Conservative Odontology and Endodontics. She currently resides in the Department of Conservative Dentistry\r\nand Endodontics at the Ibn Sina University Hospital Center in Rabat, Morocco.
This e-poster presents non-surgical procedures to treat extensive cyst-like peri-apical lesions of endodontic origin. Six cases of cyst-like peri-apical lesions involving 6 teeth from 6 patients were selected. The symptoms described by the patients varied from a simple discomfort, a cutaneous fistula or even a circumscribed acute cellulitis. Radiographic diameters of the lesions ranged from 5.5 mm to 22 mm. Non-surgical procedures were performed by chemo-mechanical root canal preparation.\r\nWe placed intracanal calcium hydroxide dressing which were periodically replaced during 2 to 6 months. The root canals were\r\nthen filled with gutta percha by cold lateral condensation technique. Th e follow-up periods ranged from 6 to 24 months. We\r\nreported good bone healing. Thus, non-surgical treatment of these extensive cyst-like peri-apical lesions provided favorable\r\nclinical and radiographic response.