Characteristics and Effectiveness of XP-Endo Files and Systems: A Narrative Review

Area of Science:

• Endodontics
• Dental Materials Science

Background:

• XP-endo files utilize Max-Wire alloy (Martensite-Austenite Electropolish Flex), a novel NiTi alloy offering shape memory and superelasticity.
• This alloy's unique properties are engineered for advanced clinical applications in endodontic procedures.

Purpose of the Study:

• To comprehensively review existing evidence on various XP-endo files and systems.
• To elucidate the distinct properties and clinical applications of XP-endo Finisher (XPEF), XP-endo Shaper (XPES), XP-endo Retreatment (XPER), XP-endo Rise (XPE-Rise), and XPE-Rise Retreatment (XPE-Rise-R).
• To identify future research directions for optimizing XP-endo file systems.

Main Methods:

• A systematic literature search was conducted on PubMed using "XP endo" and "XP-endo" keywords.
• 130 relevant in vivo and in vitro studies on permanent teeth were selected after initial screening and exclusion of unrelated literature.
• Selected studies were critically reviewed, summarized, and categorized based on the specific XP-endo file evaluated.

Main Results:

• XP-endo files demonstrate significant advancements in endodontic treatment efficacy.
• XPEF is highly effective for irrigation activation and removal of intracanal medicaments.
• XPES shows superior performance in root canal cleaning, shaping, and retreatment procedures.

Conclusions:

• XP-endo files offer substantial improvements for endodontic therapy.
• XPEF and XPES provide distinct advantages for specific endodontic tasks.
• The XPER system shows potential for root canal filling removal, though its consistency varies. Limited data exists for XPE-Rise and XPE-Rise-R, necessitating further investigation.