<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31387482</termId><termName>dental drills</termName><termType>PT</termType><termNote><![CDATA[ Rotary instruments used to remove tooth substance, particularly in the treatment of caries. Historically, the drill was hand-operated or pedal-driven. Modern dental drills operate by an electric motor; they consist of a dental handpiece that may be fitted with variously shaped burs. ]]></termNote><termCreatedDate>2026-03-30 20:44:29</termCreatedDate><relation><relationType>UF</relationType><termId>31387483</termId><termName>dental drill</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31353455</termId><termName>dental instruments</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>31420336</termId><termName>drills by form</termName><termType>PT</termType></relation></term>  </Zthes>