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A technique for easy removal of excess resin cement Ignacio Farga-Niñoles Mihaela Teris Dental Update 2024 51:2, 707-709.
Authors
IgnacioFarga-Niñoles
DDS, MSc, BDS
Master in Prosthodontics, DipImplantDent RCSEng, MSc ImplantDent, Clinical Teacher and Academic Advisor, Restorative Department, Dental Institute, Queen Mary University of London
In the context of cementing indirect dental restorations, the inadvertent bonding of excess cement to adjacent teeth poses a multifaceted challenge, affecting aesthetics, periodontal health and chair time. Using PTFE tape as the sole method for isolation can be time consuming, and occasionally presents challenges. The approach described in this Technique Tip involves manually holding a matrix holder to safeguard neighbouring teeth from sandblasting and etching contamination, providing a pragmatic resolution to these issues. It seamlessly integrates with the established practice of using PTFE tapes to prevent unwanted bonding and cement attachment to adjacent teeth.
CPD/Clinical Relevance: Combining PTFE and matrix bands optimises bonding of indirect ceramic restorations for periodontal health and efficiency.
Article
Cementing indirect restorations is a procedure that demands a high level of skill and precision, often causing considerable stress. Multiple factors contribute to the potential failure of indirect restorations and the inadvertent damage to neighbouring teeth and soft tissues. One significant factor is the unintended bonding of excess cement to adjacent teeth during the placement of indirect restorations.1 This excess cement can be challenging to detect, cumbersome to eliminate, and particularly time consuming, especially when it adheres to adjacent dental structures.1 Clinicians often require dental radiographs to identify the presence of cement excess, resulting in a patient's exposure to radiation.2
PTFE tape has been employed to shield adjacent teeth from orthophosphoric acid contamination and sandblasting.8 Nevertheless, sandblasting using 50-µm aluminum oxide particles at 2 bars of pressure typically results in PTFE tape degradation. As a result, the defective PTFE tapes should be replaced before etching. PTFE tapes are often aspirated when the etching process is meticulously rinsed. The constant replacement of PTFE tapes significantly prolongs and complicates the procedure.
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