A dental caliper is a precision measuring instrument designed to take exact linear, depth, and thickness measurements on dental restorations, wax patterns, anatomical bone structures, and diagnostic casts.
☑️ Key Properties
▪️ High Measurement Precision: Features fine, tapered tips capable of measuring down to 0.1 mm resolution, typically across a 0 to 20 mm or 0 to 40 mm range.
▪️ Medical-Grade Material: Constructed from surgical stainless steel (AISI 420/304) for high tensile strength, wear resistance, and rust prevention.
▪️ Autoclavable & Chemical-Resistant: Fully steam-autoclavable (up to 134°C) and resistant to cold chemical disinfectants without losing scale legibility or joint tension.
▪️ Laser-Etched Markings: Deeply engraved or laser-marked millimeter scales that remain clear and legible over repeated sterilization cycles.
▪️ Ergonomic Control: Features spring-action arms for quick tactile reading or screw-lock dials to freeze exact dimensions in place.
◻️ Applications
▪️ Dental Laboratory & Prosthodontics: Measuring wall thickness on wax patterns, metal copings, zirconia frameworks, and ceramic crowns to ensure structural durability without over-contouring.
▪️ Implantology & Oral Surgery: Gauging alveolar ridge width, interdental spacing, bone thickness, and osteotomy sites prior to implant placement.
▪️ Orthodontics: Measuring mesiodistal and buccolingual tooth dimensions, arch width, and space availability during model analysis (such as Bolton analysis).
▪️ Restorative Dentistry: Assessing cavity preparation dimensions, post space depth, and interocclusal clearance.
⚪️ Common Varieties
▪️ Iwanson Spring Caliper: Calibrated arc with flexible spring arms; optimized for measuring wax patterns and metal crown thickness.
▪️ Castroviejo Caliper: Screw-locking caliper with fine pointed tips; preferred for surgical, periodontal, and microsurgical procedures.
▪️ Digital Dental Caliper: Electronic readout with LCD display for instant toggling between millimeters and inches.
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