FREQUENTLY ASKED QUESTIONS - Endodontics
What should I look for when choosing endodontic files?
Clinicians should evaluate cyclic fatigue resistance, flexibility for curved canals, cutting efficiency, heat treatment technology, and whether the file system supports single-file or sequential shaping. DPS evaluator panels score endo files on all five criteria.
What is the difference between rotary and reciprocating endodontic systems?
Rotary files spin continuously in one direction for consistent shaping; reciprocating systems alternate directions to reduce file stress and separation risk. Both achieve effective canal shaping — the choice depends on case complexity and clinician preference.
How often should endodontic files be replaced?
Most NiTi rotary files are designed for single-patient use to minimize separation risk; some manufacturers specify a maximum number of uses per file. Heat-treated files generally tolerate more cycles before fatigue — always follow the manufacturer's recommendations.
What is a bioceramic sealer and when should it be used?
Bioceramic sealers use calcium silicate chemistry to bond to dentin, promote biocompatibility, and release calcium hydroxide over time. They are preferred for cases requiring superior sealing ability and reduced microleakage, particularly in cases with open apices or complex anatomy.
How do DPS clinician evaluators rate endodontic products?
Independent panels of practicing dentists and endodontists use products in their own offices for approximately 4 weeks, rating them on specific clinical criteria. Scores are averaged across the panel — products rated 4.3 or above earn the DPS Best Product designation.