Effect of Energy and Pulse Repetition Rate of Er: YAG Laser on Dentin Ablation Ability and Morphological Analysis of the Laser-Irradiated Substrate
✍ Scribed by Corona, Silmara Aparecida Milori; Souza, Aline Evangelista de; Chinelatti, Michelle Alexandra; Borsatto, Maria Cristina; Pécora, Jesus Djalma; Palma-Dibb, Regina Guenka
- Book ID
- 125528159
- Publisher
- Mary Ann Liebert
- Year
- 2007
- Tongue
- English
- Weight
- 458 KB
- Volume
- 25
- Category
- Article
- ISSN
- 1044-5471
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## Background and objectives: To investigate the morphology of cementum and root dentin after er:yag laser irradiation with and without water coolant, compared to that after co(2) laser irradiation and an untreated surface. ## Study design/materials and methods: Ten extracted healthy human teeth
A pulsed Er:YAG laser (2.94 pm) was used to determine ablation depths per pulse of laser energy at 2 Hz and 5 Hz in human teeth cross sections of enamel and dentin. Ablation depths per pulse at 2 Hz in enamel of intact human teeth were measured and compared to ablation depths per pulse determined in
## Abstract The study evaluated the __in vitro__ influence of pulse‐repetition rate of Er:YAG laser and dentin depth on tensile bond strength of dentin–resin interface. Dentin surfaces of buccal or lingual surfaces from human third molars were submitted to tensile test in different depths (superfic