Intrapulpar temperature variation in primary teeth during cavity preparation using: Er:YAG laser and conventional high-speed drill
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Brazilian Dental Journal
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Increases of temperatures superior than 5-5.5°C can compromise
the pulp vitality. The purpose of this in vitro study was to compare the variation of the pulp temperature in primary teeth during
the cavity preparation. Twelve primary lower incisors (Human
Tooth Bank-FOUSP) were divided in 4 groups (n=3): cavity
preparations were performed at buccal surface, refrigerated by
air-water spray, during 20sec, using #1090 diamond burr in highspeed
drill in carious-free incisors (G I) and carious incisors (G
II); or Er:YAG laser (2.94μm)(KaVo 3)(LELO-FOUSP), with
6Hz repetition rate/ 600mJ energy as orientated by manufacturer,
in carious-free incisors (G III) and carious incisors (G IV). The
variation of temperature was measured using digital oscilloscope
and thermocouple type K placed inside the pulpar chamber,
simultaneously the teeth was kept under water thermal bath during
the procedures. The temperatures rises were less than 4ºC in
all cavities preparations in different groups, the variation of temperature
in laser and conventional high-speed drill groups
showed similar values. The groups of carious teeth showed higher
increase of temperature than carious-free teeth. The Er:YAG
laser demonstrated be a safe alternative for cavities preparations
in primary teeth, since that using effective and safety parameters
by qualified and trained professionals.
Como referenciar
FERNANDES, A.S.F.; NAVARRO, R.S.; GONTIJO, I.; HAYPEK, P.; ZEZELL, D.M.; HADDAD, A.E. Intrapulpar temperature variation in primary teeth during cavity preparation using: Er:YAG laser and conventional high-speed drill. Brazilian Dental Journal, v. 15, p. 106-107, 2004. Special issue. Disponível em: http://repositorio.ipen.br/handle/123456789/32748. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.