Diagnostic Value of Digital Radiography in Gap Detection of Implant-Abutment Connection with Zirconia Abutments in Different Vertical X-ray Projection Angles
Journal Title: Journal of Clinical and Diagnostic Research - Year 2018, Vol 12, Issue 5
Abstract
ABSTRACT Introduction: Accurate seating of abutments on implants is an important factor for long term success of implant supported restorations. Among different methods of evaluating abutment seating, radiography is most commonly used, while some clinical factors such as angulation of radiography film and radiography tube can adversely affect its diagnostic value. Aim: To evaluate diagnostic value of digital periapical radiographs in terms of sensitivity, specificity and accuracy of gap detection at implant-abutment connection with different angles of X-ray projection when using a zirconia abutment. Materials and Methods: In this in vitro study radiographs were made of three different implant connections (internal tri-channel, external hex and internal hex with platform switching) to which zirconia abutments were fastened, once with and once without using a spacer between implant and abutment. Radiographs were taken at different projection angles of -20, -15, -10, -5, 0, +5, +10, +15, and +20. Then 10 prosthodontists were asked to assess all the radiographs, two times for each one with an interval of 10 days. Sensitivity, specificity and accuracy indices were calculated for each system. Results: Findings showed that sensitivity of gap detection in all study groups was amongst acceptable range (85-100%). In general external hex connection system showed better results (95-100%) while the platform switching internal hex system had the weakest results (85-100%). Conclusion: Angle of X-ray projection is better to be between -10 to +10 when evaluating complete seat of zirconia abutments on implants especially if a platform switching system is used.
Authors and Affiliations
Marzieh Alikhasi, Alireza Salehi, Maryam Memarian, Mahtab Tabesh
Keywords
Related Articles
- EP ID EP524445
- DOI 10.7860/JCDR/2018/34540.11509
- Views 88
- Downloads 0
Clinicopathological Characteristics and Outcomes of Diffuse Crescentic Glomerulonephritis - A Single Center Experience from Southern India
Introduction: Diffuse Crescentic glomerulonephritis (CrGN) is characterized by rapidly progressive renal failure and has grave prognosis. There is significant regional and temporal variation in aetiology, prevalence and...
Meckel’s Diverticulum Enterolith: An Extremely Rare Cause of Intestinal Obstruction
Meckel’s diverticulum is usually asymptomatic but occasionally presents with complications. Formation of an enterolith inside a Meckel’s diverticulum is very uncommon and dislodgement of such a stone causing obstruction...
Evaluation of Semen Oxidative Stress and Sperm DNA Damage in Cases of Unexplained Foetal Congenital Anomalies- A Pilot Study
Introduction: Birth defects lead to significant neonatal morbidity and mortality. Although, maternal factors have been widely studied, paternal factors have not received much attention. Inherent integrity of the sperm DN...
Portal Vein Pseudoaneurysm: A Rare Complication of Post Pancreaticoduodenectomy Haemorrhage
ABSTRACT Pancreaticoduodenectomy is a complex procedure which is associated with high rates of mortality and morbidity. With the improvement of surgical techniques and skills the mortality rates have come down drasticall...
Family Physician - Oral Physician Interplay in Diagnosing Coronary Heart Disease among Adults with the Help of Tooth Loss: The Malaysian Perspective
Letter to Editor