Evaluation of Apical Cavity Preparation With a New Type of Ultrasonic Diamond Tip

Bernardes, Ricardo Affonso; Moraes, Ivaldo Gomes de; Garcia, Roberto Brandão; Bernardineli, Norberti; Baldi, Járcio Victório; Victorino, Fausto Rodrigo; Vasconcelos, Bruno Carvalho de; Duarte, Marco Antônio Húngaro; Bramante, Clóvis Monteiro

doi:10.1016/j.joen.2006.12.019

Cited by 32 publications

(41 citation statements)

References 17 publications

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“…The cavities prepared are conservative and precise. Moreover the cutting bevel obtained is perpendicular to the long axis of the root thus having the advantage of decreased number of exposed dentinal tubules at the resected surface and so the microleakage is also minimized [16].…”

Section: Resultsmentioning

confidence: 99%

Microleakage Evaluation Around Retrograde Filling Materials Prepared Using Conventional and Ultasonic Techniques

Mandava

Bolla

Jayaprakash

et al. 2015

JCDR

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Introduction: The importance of the retrograde cavity preparation and the material used to restore is of utmost importance to achieve successful surgical endodontics. Aim:The aim of the present study is to evaluate the apical microleakage of root end cavities filled with Mineral trioxide aggregate, Biodentine and light cure GIC using two different cavity preparation techniques that is conventional bur preparation and ultrasonic tip preparation.

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Section: Resultsmentioning

confidence: 99%

Microleakage Evaluation Around Retrograde Filling Materials Prepared Using Conventional and Ultasonic Techniques

Mandava

Bolla

Jayaprakash

et al. 2015

JCDR

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“…The condition of the cavity surface is another influential factor to be considered. It has been demonstrated that cavities prepared with rotary instruments are left with a greater amount of debris and smear layer in comparison to those prepared with diamond-coated ultrasonic tips (4,5). These remains are permeable and (13) allow microleakage, preventing complete contact Values with the same letter are not significantly different (p>0.05).…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, substantial amounts of bone must be removed to enhance the access of the microbur, increasing the postoperative discomfort of the patient (2). The introduction of ultrasonic instruments for rootend cavity preparation has solved some of these problems (2,3), improving access to the surgical field, avoiding bevelling and producing a cleaner and deeper cavity centred in the root canal (1,4,5). However, there is a risk that the ultrasound energy produces microcracks in the root, compromising the seal and leading to treatment failure (3,6,7).…”

Section: Introductionmentioning

confidence: 99%

Influence of cavity preparation technique (rotary vs. ultrasonic) on microleakage and marginal fit of six end-root filling materials

Ji¹,

Olmedo-Gaya²,

Vallecillo-Capilla³

et al. 2011

Med Oral

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Objectives: To evaluate in vitro the effect of cavity preparation with microburs and diamond-coated ultrasonic tips on the microleakage and marginal fit of six end-root filling materials. Study Design. The following materials were assessed: amalgam (Amalcap), zinc oxide eugenol (IRM), glass ionomer (Vitrebond), compomer (Cavalite), mineral particle aggregate (MTA) and composite (Clearfil). Cavity preparation was performed with microburs or diamond ultrasonic tips in single-root teeth. The seal was evaluated in two experiments: a microleakage assay on the passage of dye to the interface; and a scanning electron microscopy study and analysis of epoxy resin replicas, measuring the size of gaps in the interface between filling material and cavity walls. Multifactorial ANOVA, multiple comparison test and Student's t test were used for statistical analyses of the data, considering p<0.05 to be significant. Results: Clearfil and MTA achieved a hermetic seal. Leakage and interface gap size was greater with Cavalite than with Clearfil and MTA, followed by Vitrebond and IRM. The worst seal was obtained with Amalcap. The use of diamond-coated ultrasonic tips improved the seal and reduced the gap when using materials that did not hermetically seal the cavity (Amalcap, IRM, Cavalite, Vitrebond). The preparation technique did not affect materials that achieved a hermetic seal (Clearfil, MTA). Conclusions: Clearfil and MTA obtained a hermetic seal due to their excellent marginal fit and are the most recommended materials for clinical use, taking account of their sealing capacity. Ultrasonic cavity preparation is preferable because it improves the seal and marginal fit of materials that do not achieve a hermetic seal of the cavity (Amalcap, IRM, Cavalite, Vitrebond).

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“…Rootend ultrasonic preparation provides better retention of retrofilling material and lower exposure of dentinal tubules (12,15). In the present study, root-end preparation was performed using a diamond ultrasonic tip (CVD T0F-2; CVDVale, São José dos Campos, SP, Brazil), which demonstrated cutting effectiveness and regular root-end preparation (12). Thus, to evaluate the root-end filling materials' bond strength, the dentinal walls were prepared by ultrasonic tips, which provide proper retrograde preparation (13).…”

Section: Discussionmentioning

confidence: 99%

“…An improved type of diamond-coated tip is fabricated using the chemical vapor deposition method (CVD). The surface characteristic of the CVD tip may result in qualitative difference for root-end preparation (12,13) This study evaluated the bond strength of root-end filling materials. The null hypothesis was that there are no differences in bond strength values among the materials in retrograde cavities prepared with ultrasonic tips.…”

Section: Introductionmentioning

confidence: 99%

Push-out Bond Strength of Root-end Filling Materials

et al. 2016

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The aim of this study was to evaluate the bond strength of root-end filling materials. Forty 2-mm-thick slices were obtained from human single-rooted teeth. After root canal preparation using a 1.5 mm diameter cylindrical drill, the dentinal walls were prepared by diamond ultrasonic tip (CVD T0F-2). The specimens were divided according the material (n=10): MTA Angelus (MTAA), MTA Sealer (MTAS, experimental), Sealer 26 (S26) and zinc oxide and eugenol cement (ZOE). The push-out test was performed in a mechanical test machine (EMIC DL 2000) at 1 mm/min speed. The failure type was evaluated by stereomicroscopy. The results were subjected to ANOVA and Tukey test, at 5% significance level. MTAA (19.18 MPa), MTAS (19.13 MPa) and S26 (15.91 MPa) showed higher bond strength (p<0.05). ZOE (9.50 MPa) showed the least bond strength values (p<0.05). Adhesive failure was prevalent in all groups, except for ZOE, which showed mixed failures. It was concluded that root-end filling materials MTA Angelus, MTA Sealer and Sealer 26 showed higher bond strength to dentinal walls than zinc oxide and eugenol cement after retrograde preparation. P u s h -o u t B o n d S t r e n g t h o f R o o t -e n d F i l l i n g M a t e r i a l s

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Evaluation of Apical Cavity Preparation With a New Type of Ultrasonic Diamond Tip

Cited by 32 publications

References 17 publications

Microleakage Evaluation Around Retrograde Filling Materials Prepared Using Conventional and Ultasonic Techniques

Microleakage Evaluation Around Retrograde Filling Materials Prepared Using Conventional and Ultasonic Techniques

Influence of cavity preparation technique (rotary vs. ultrasonic) on microleakage and marginal fit of six end-root filling materials

Push-out Bond Strength of Root-end Filling Materials

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