Effect of the lasers used in periodontal therapy on the surfaces of restorative materials

Hatipoğlu, Mükerrem; Barutçigil, Çağatay; Harorlı, Osman Tolga; Uluğ, Bülent

doi:10.1002/sca.21264

Cited by 7 publications

(10 citation statements)

References 25 publications

(34 reference statements)

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“…Those studies could demonstrate that the applied laser fluences were above the ablation threshold of the investigated cements and filling materials (inter alia a glass ionomer cement [5,6], a compomer [5] and a composite [5][6][7]). The ablation threshold is specific for each dental material and the study at hand has no dental material in common with the above mentioned studies [5][6][7]. Nevertheless, one may assume that the dental materials used in the present study show similar ablation thresholds as the investigated representatives of the material classes due to a similar composition.…”

Section: Discussionmentioning

confidence: 99%

“…Ablation of dental materials only occurs for energy settings and spot diameters resulting in a laser fluence, which is higher than the dental material's specific ablation threshold. Studies which investigated the extent of damage to dental materials by laser light applied laser fluences recommended for periodontal therapy for diode lasers (wavelength: 810 nm and 940 nm ) as well as laser fluences recommended for gingivectomy for diode lasers (wavelength: 810 nm ) and Nd:YAG lasers . Those studies could demonstrate that the applied laser fluences were above the ablation threshold of the investigated cements and filling materials (inter alia a glass ionomer cement , a compomer and a composite ).…”

Section: Discussionmentioning

confidence: 99%

“…Studies which investigated the extent of damage to dental materials by laser light applied laser fluences recommended for periodontal therapy for diode lasers (wavelength: 810 nm and 940 nm ) as well as laser fluences recommended for gingivectomy for diode lasers (wavelength: 810 nm ) and Nd:YAG lasers . Those studies could demonstrate that the applied laser fluences were above the ablation threshold of the investigated cements and filling materials (inter alia a glass ionomer cement , a compomer and a composite ). The ablation threshold is specific for each dental material and the study at hand has no dental material in common with the above mentioned studies .…”

Section: Discussionmentioning

confidence: 99%

“…However, diode lasers and the Nd:YAG laser are able to ablate dental materials (i.e., cements and filling materials) . Especially during the “blind” operation within the dental pocket during periodontal treatment, subgingival filling materials and cements in the marginal gap of crowns may be damaged.…”

Section: Introductionmentioning

confidence: 99%

“…Next to the energy settings, there are many more factors influencing the extent of damage such as the laser spot diameter, the exposed dental material itself as well as the applied laser wavelength. Given the wide range of influencing factors, the investigations on dental materials’ damage can only give an incomplete insight into this problem and comparability between the studies is limited due to the different parameters (laser wavelength, energy settings, spot diameter, dental material) used in the studies .…”

Section: Introductionmentioning

confidence: 99%

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Characterization of the transmission behavior of dental filling materials and cements for the diode lasers’ and the Nd:YAG laser's wavelengths

et al. 2019

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Objectives Diode lasers and the Nd:YAG laser are used in periodontal therapy and soft tissue surgery. Dental filling materials or cements might be inadvertently damaged. The underlying mechanism of the damage is based on the dental material's specific transmission and thus absorption behavior. Materials and Methods Twenty‐four material representatives for composites, glass ionomer cements and other material classes (e.g., compomer) were processed to 100 μm and 200 μm planar specimens and spectroscopically measured for their collimated transmission in the photo spectrometer Varian Cary 5000. The (1) mean intensity of transmitted light was determined for the laser wavelengths of interest (810 nm, 940 nm, 980 nm, 1,064 nm) and used to calculate the (2) absorption lengths. Results The (1) mean intensity of transmitted light ranged between 9.51 % (Panavia F 2.0 for 810 nm) and 96.79% (Artegral Cem for 1,064 nm) for the composite specimens (100 μm) and was—with few exceptions—near zero for the representatives of glass ionomer cement and the other material classes. The (2) absorption lengths were between 0.06 mm (Panavia F 2.0 for all wavelengths of interest) and 1.33 mm (Coltène Duo Cement Plus for 1,064 nm) for the composites and below or equal 0.15 mm (PermaCem for 1,064 nm) for the few representatives of glass ionomer cements and the other material classes with mean intensities of transmitted light, which were not near zero and thus permitted to calculate absorption lengths. Conclusions The transmission behavior varied between the different material classes and even within, albeit less pronounced. Composites generally showed the highest intensities of transmitted light and are thus least susceptible to surface damage by laser light (810 nm, 940 nm, 980 nm, 1,064 nm). The results can be used to improve and develop laser applications involving purposeful interactions between laser light and dental materials. Lasers Surg. Med. © 2019 Wiley Periodicals, Inc.

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