What to Do With Stripped, Broken, and Loosened Screws? Implant Prosthetic Screw Complications: A Hands-On Workshop for Dentists

Saturday, May 2, 2020 from 1pm - 4pm 
The registration period has closed for this event.


Course Description:

It has been reported that implant prosthetic screw fracture has an incidence rate of 3.9% and the rate for implant prosthetic screw loosening is 6.7%. If the screw or screw fragment cannot be removed, the existing implant will be unusable. Furthermore, these complications can be quite challenging to manage and there is no universally acceptable technique allowing the clinician to retrieve the failed screw.


This hands-on course is designed to provide clinicians with comprehensive information related to several types of implant prosthetic screw complications including stripped, broken, and loosened screws. Biomechanical principles and prosthetic screw designs will be reviewed. Various techniques to remove failed screws will be covered in lecture and in the technical, hands-on portion. It is the goal of this course to allow participants to grasp the knowledge and skills of resolving prosthetic screw complications in the dental office within one single visit.

Educational Objectives:

Upon completion of this course, participants will be equipped with:

1. The knowledge of implant prosthetic screw designs, functions and preload.

2. Practical experience necessary to remove stripped, broken, and loosened implant prosthetic screws.

3. The awareness to prevent implant prosthetic screw complications.

Educational Methods

PowerPoint lecture and Hands-on

Other important information for participants:

1. This program is designed for dentists only. It is not suitable for office staff.

2. Class size is limited to 10 participants.

3. Implant screw drivers, torque wrenches, burs and practice models will be provided.

4. Participants must bring their own:

a. High and low speed (straight and contra angle) 4-hole Midwest type handpieces

b. Explorer

c. Personal dental magnifier glasses or optical loupes


Dr. Perng-Ru Liu is a 1985 graduate of Chung-Shan Medical University, Taiwan. He received his Prosthodontic Certificate (1991), MS Degree (1992) and DMD Degree (1999) from the University of Alabama at Birmingham (UAB) School of Dentistry. Currently, he is Professor and Associate Dean of Clinical Affairs at UAB School of Dentistry where he also served as Chair of the Department of Comprehensive Dentistry (2000 to 2009), Chair of the Department of Prosthodontics (2009 to 2012) and Chair of the Department of Restorative Sciences (2012-2019). In September, 2014, he was named the inaugural holder of the Thomas P. Hinman Dental Meeting Endowed Professorship in Comprehensive Dentistry.

Dr. Liu has been very actively involved in several grant supported clinical dental implant research projects at the UAB School of Dentistry. His research interests have been focused on clinical research of the restorative phases of several dental implant systems and in·vivo evaluations of the various esthetic restorative systems. Dr. Liu is a member of the American Dental Association, the International Association for Dental Research, the American College of Prosthodontists and Omicron Kappa Upsilon National Honorary Dental Fraternity. He is a fellow of the American College of Dentists and the International College of Dentists. Dr. Liu has published numerous scientific abstracts and articles in refereed journals. He has also lectured nationally and internationally on computer generated ceramic restorations, esthetic dentistry, and implant dentistry. Dr. Liu was the recipient of the 1997 and 2005 UAB President's Award for Excellence in Teaching, the highest university-wide honor for teaching excellence, in the School of Dentistry.

Continuing Education
Lecture: Credits - 3


Tuition: Dentist - $500 ($200 lecture fee and $300 materials fee)


Registration open through 4/24/2020 10:59 PM EST

UAB School of Dentistry

1919 7th Ave. South
Birmingham, AL 35294

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