Effect of photon induced photoacoustic streaming (PIPS) on bond strength to dentine of two root canal filling materials

Miletić, Ivana; Chieffi, Nicoletta; Rengo, Carlo; Ferrari, Marco; Nathanson, Dan; Baraba, Anja

doi:10.1002/lsm.22536

Cited by 6 publications

(4 citation statements)

References 20 publications

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“…RSSE displayed adhesive and mixed failure modes, suggesting that the sealer adheres well to the Resilon core but less predictably to dentin. The mentioned findings are consistent with the results reported in previous studies [ 41 , 49 ]. The adhesive failures suggest an improper chemical bond between the sealer and root canal dentine.…”

Section: Discussionsupporting

confidence: 94%

“…In our study, RSSE presented the weakest adhesion force to the dentinal surface (1.059 ± 1.240). These values are in concordance with results reported by other studies [ 29 , 41 , 42 ]. Specifically, in the study released by Stelzer et al [ 29 ], bond strength values ranged between 0.91 ± 0.64 and 1.28 ± 0.60 when hypochlorite, EDTA, or chlorhexidine were used for the final irrigation, with higher levels for hypochlorite followed by saline solution (2.35 ± 0.49).…”

Section: Discussionsupporting

confidence: 93%

“…In our study, the final irrigation was carried out using NaOCl, followed by EDTA, to eliminate the smear layer and open the dentinal tubules, which, according to Stelzer, would reduce the dentinal surface required for sealer retention. The same effect was observed in Miletic’s study [ 41 ], where removal of the smear layer using PIPS diminished bond strength values for RSSE. In the absence of the smear layer, RSSE’s pH of 3.9 is not sufficiently strong to adequately demineralise the dentin, consequently affecting the hybrid layer development [ 43 ].…”

Section: Discussionsupporting

confidence: 82%

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Evaluation of Bond Strength of Four Different Root Canal Sealers

et al. 2022

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The purposes of the study were to evaluate the influence of the sealer’s chemical composition on the interfacial strength between root canal dentin and root filling material, for two different classes of endodontic sealers, and to assess their failure modes. Methods: Forty extracted single-rooted teeth were randomly divided into four groups using the following endodontic sealers: RealSeal SE and Resilon (RSSE); EndoSequence BC sealer and BC Point (EBCS); Endoseal MTA and gutta-percha (EDS); Bioroot RCS and gutta-percha (BRS). Teeth were embedded in acrylic resin, and the roots were sectioned horizontally into 1 mm slices. For each slice, the perimeter was measured. A push-out test was performed using an Instron universal testing machine. For each sample, bond strength was calculated. Specimens were examined by SEM investigation in order to analyze the dentin–sealer–core interface. Results were assessed using analysis of variance (ANOVA) and Tukey and Bonferroni test. Results: Statistical analysis revealed that EDS and gutta-percha had significantly higher resistance to dislodgement compared to the other three groups (p < 0.05). EBCS and BC Point showed significantly greater push-out bond strength values compared to RSSE and Resilon (p < 0.05). Conclusions: Bioceramic endodontic sealers showed a higher bond strength to root dentin than methacrylate resin-based endodontic sealer.

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Section: Discussionsupporting

confidence: 94%

Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 82%

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Evaluation of Bond Strength of Four Different Root Canal Sealers

et al. 2022

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“…66 In the latter, PIPS outperformed LAI (Er:YAG, Nd:YAG, diode lasers), PUI, and EndoVac. Nevertheless, the three other studies did not remark on the improved penetration caused by PIPS versus CSI, 26,70 MAI, 71 and EndoVac (Table 5). 26 Irrigant Penetration in Dentinal Tubules Only one study 69 was found on irrigant penetration into dentinal tubules.…”

Section: Root Canal Sealer Bond Strengthmentioning

confidence: 92%

The Efficiency of the Er: YAG Laser and PhotonInduced Photoacoustic Streaming (PIPS) as an Activation Method in Endodontic Irrigation: A Literature Review

Linh

Gaudin

2020

J Lasers Med Sci

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In the field of endodontics, lasers have been used for a long time for the optimization of Endodontic irrigation in particular. The laser-activated irrigation (LAI) technique is based on the photomechanical effects of the lasers at low settings. They create specific cavitation phenomena and acoustic streaming in intracanal fluids. More recently, a new technique with a Er:YAG laser has been used with sub-ablative energy (20 mJ, 15 Hz) and ultra-short pulses (50 µs). This leads to intracanal cavitation and shockwaves as a result of photoacoustic and photomechanical effects. This phenomenon is called photon-induced photoacoustic streaming (PIPS). PIPS and Laser activated irrigation are described in the literature as a revolutionary and powerful method to activate the irrigant; however, systematic literature on this topic is missing. This review compares the literature on Er:YAG LAI and PIPS on endodontic irrigation with other irrigation methods. An article search was performed on the PubMed database using a series of keywords related to endodontic irrigation, including Er:YAG LAI and PIPS; 59 articles were selected for the review according to the inclusion and exclusion criteria. No in vivo study was found. The Er:YAG LAI and PIPS outperformed other methods in 33 of the 59 articles. There was a great variety in the study designs including bacterial incubation time, laser parameters, irrigation protocols, and irrigating solution used. The evidence suggests that the Er:YAG LAI and PIPS are promising in canal disinfection as well as debris and smear layer removal. However, the large variety in the study methods makes the results less significant. Further studies are needed to better evaluate the efficiency of these techniques, especially in vivo studies.

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