Retrieval of Cold Welded Dental Implant Cover Screw using a New Technique

Author(s):  
Ravishankar Krishna ◽  
Rashmi Kejriwal ◽  
J Suma
2012 ◽  
Vol 38 (6) ◽  
pp. 747-750 ◽  
Author(s):  
Manpreet S. Walia ◽  
Saryu Arora ◽  
Reena Luthra ◽  
Prabhjot Kaur Walia

Implant restorations can fail biologically or mechanically. Biological factors include unsuccessful osseointegration or presence of peri-implantitis. Mechanical failures include crown fracture, framework fracture, screw loosening, and screw fracture. Fracture of the implant abutment can be a serious problem as the fragment remaining inside the implant may prevent the implant from functioning efficiently. The procedure used for removal of the fractured screw portion is described in this clinical report.


2011 ◽  
Vol 37 (5) ◽  
pp. 589-594 ◽  
Author(s):  
Umut Tekin ◽  
Doruk I. Kocyigit ◽  
Volkan Sahin

Periodontal defects and trauma at the anterior maxillary region can cause a severe alveolar ridge deficiency resulting in an unesthetic view. Ideal implant positioning can be compromised by inadequate alveolar bone in terms of height and width. Reconstruction of osseous defects with autogenous bone allows ideal implant positioning and creates a more natural soft and hard tissue profile, which influences esthetic crown anatomy at the anterior maxillary region. In this case report, an alveolar ridge defect due to periodontally compromised tooth extraction was filled with autogenous bone cylinder and dental implant at one-stage surgery. In the presented case, a new technique was described which included bone reconstruction of the defects at the anterior maxillary region and simultaneous placement of the dental implant.


2005 ◽  
Vol 25 (1_suppl) ◽  
pp. S543-S543
Author(s):  
Satoshi Kimura ◽  
Keigo Matsumoto ◽  
Yoshio Imahori ◽  
Katsuyoshi Mineura ◽  
Toshiyuki Itoh

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