PMID- 31094139
OWN - NLM
STAT- MEDLINE
DCOM- 20190701
LR  - 20190701
IS  - 0894-8275 (Print)
IS  - 0894-8275 (Linking)
VI  - 32
IP  - 2
DP  - 2019 Apr
TI  - Influence of pulse duration when performing Er:YAG laser irradiation on dental 
      tissues.
PG  - 61-68
AB  - PURPOSE: To evaluate the marginal adaptation of mixed Class V composite 
      restorations in cavities prepared with the Quantum Square Pulse (QSP) mode Er:YAG 
      laser, compared to Super Short Pulse (SSP) and diamond bur. The impact of Er:YAG 
      laser finishing with low pulse energy and two irradiation distances was also 
      evaluated. METHODS: Class V cavities were prepared in enamel and dentin by 
      varying the above parameters, and then restored with Clearfil SE Bond and 
      Clearfil AP-X composite under dentin fluid simulation. The control groups were 
      prepared and finished using conventional diamond burs (80 and 25 microm 
      respectively). Scanning electron microscope (SEM) marginal adaptation analysis at 
      x200 magnification was performed on replicas before and after thermo-mechanical 
      cyclic loading in order to determine the percentage of continuous margins (i.e. 
      from 0 to 100% of gap free margins). The differences between groups were analyzed 
      with one-way ANOVA and Duncan post hoc test. RESULTS: Dentin treated with SSP 
      showed significantly lower percentages of "continuous margin" than the QSP and 
      control groups. QSP was as effective as bur preparation. CLINICAL SIGNIFICANCE: 
      The preparation and finishing protocol may no longer be necessary when using the 
      QSP mode, reducing clinical time without compromising marginal adaptation.
CI  - Copyright(c)American Journal of Dentistry.
FAU - Nerushay, Izabella
AU  - Nerushay I
AD  - Division of Cariology and Endodontology, University Clinic of Dental Medicine, 
      Faculty of Medicine, University of Geneva, Geneva, Switzerland, 
      izabella.nerushay@unige.ch.
FAU - Krejci, Ivo
AU  - Krejci I
AD  - Division of Cariology and Endodontology, University Clinic of Dental Medicine, 
      Faculty of Medicine, University of Geneva, Geneva, Switzerland.
FAU - Ryabova, Anastasia
AU  - Ryabova A
AD  - Division of Cariology and Endodontology, University Clinic of Dental Medicine, 
      Faculty of Medicine, University of Geneva, Geneva, Switzerland.
FAU - Bortolotto, Tissiana
AU  - Bortolotto T
AD  - Division of Cariology and Endodontology, University Clinic of Dental Medicine, 
      Faculty of Medicine, University of Geneva, Geneva, Switzerland.
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Am J Dent
JT  - American journal of dentistry
JID - 8806701
RN  - 0 (Composite Resins)
RN  - 0 (Dentin-Bonding Agents)
MH  - Composite Resins
MH  - *Dental Bonding
MH  - *Dental Cavity Preparation
MH  - Dental Restoration, Permanent
MH  - Dentin
MH  - Dentin-Bonding Agents
MH  - *Lasers, Solid-State
MH  - Microscopy, Electron, Scanning
COIS- The authors declared no conflict of interest.
EDAT- 2019/05/17 06:00
MHDA- 2019/07/02 06:00
CRDT- 2019/05/17 06:00
PHST- 2019/05/17 06:00 [entrez]
PHST- 2019/05/17 06:00 [pubmed]
PHST- 2019/07/02 06:00 [medline]
PST - ppublish
SO  - Am J Dent. 2019 Apr;32(2):61-68.