Evaluation of different methods for the root-end cavity preparation

Khabbaz, Marouan G.; Kerezoudis, Nikolaos P.; Aroni, Evanthia; Tsatsas, Vasilios G.

doi:10.1016/j.tripleo.2004.02.062

Cited by 44 publications

(38 citation statements)

References 21 publications

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“…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%

“…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). Numerous materials have been used for root-end fillings (amalgam, glass-ionomers, zinc-eugenol oxide, and composites or aggregates of mineral particles) (1), but none are universally used as the material of choice.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, insufficient data are available on the influence of the cavity preparation on the seal of the filling material to allow a clear conclusion to be drawn (7). Some authors reported that the cavity preparation had no effect on the seal (4,8), whereas others found it to have a major influence (3,7), and further research is required to elucidate this issue. The objective of this study was to assess in vitro the effect of cavity preparation with microburs and diamond-coated ultrasonic tips on the microleakage and marginal fit of six root-end filling materials.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

View full text Add to dashboard Cite

show abstract

“…Despite the excellent results obtained with ultrasonic tips, some drawbacks have been associated with this technique (6). Dentinal cracks on the resected root end were shown after retrograde preparation with ultrasonic tips (1,(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22). All these studies showed limitations because the transfer of results obtained with extracted teeth to the clinical practice is difficult.…”

mentioning

confidence: 99%

Scanning Electron Microscopic Analysis of the Integrity of the Root-end Surface after Root-end Management Using a Piezoelectric Device: A Cadaveric Study

Fabbro

Tsesis

Rosano

et al. 2010

Journal of Endodontics

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Introduction: The introduction of piezoelectric instruments in endodontic surgery allowed clinicians to manage the bone tissue with precision reducing the risk of damaging soft tissues. Although such instruments can also be used to prepare root-end cavity, few information is available on the effect of piezosurgery on dentine. This cadaveric study investigated the integrity of root apices after root-end cavity preparation by piezoelectric instruments at different device settings. Methods: Fifty maxillary anterior teeth underwent endodontic treatment and apical resection in situ. Ten teeth were used as control. Retrograde cavities were prepared in 40 teeth (10 per group). In three groups, the piezoelectric device was set at constant vibration mode (CV), and three power levels were used. In another experimental group (n = 10), vibration + pulsation mode (VP) was selected, and low power was used. Each root was duplicated and analyzed by scanning electron microscopy for the presence of cracks and marginal chipping. Results: The number of cracks was significantly higher in the VP group, whereas no significant difference was found among CV groups. No difference between groups was found for crack type. The VP group showed a significantly poorer quality of cavity margin respect to the CV groups. Conclusion: Constant vibration mode is recommended for retrograde preparation with piezosurgery. (J Endod

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“…This is where new techniques for retrograde preparation of the central root canal in combination with an apictomy have been introduced and examined (Taschieri et al, 2004). Ultrasonic instruments are better than rotational microdrills in preparing the canal (von Axt and Kurt, 1999;Khabbaz et al, 2004). These are facilitating individual preparation and cleaning of the main canal in the region of the neoapex (Biggs and Benenati, 2001;Navarre and Steinman, 2002).…”

Section: Introductionmentioning

confidence: 99%

Apical capping as a new technique for retrograde treatment of an infected root apex: Introduction and first results

Gaggl¹,

Weiglein

Kahr³

et al. 2007

Journal of Cranio-Maxillofacial Surgery

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Evaluation of different methods for the root-end cavity preparation

Cited by 44 publications

References 21 publications

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

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

Scanning Electron Microscopic Analysis of the Integrity of the Root-end Surface after Root-end Management Using a Piezoelectric Device: A Cadaveric Study

Apical capping as a new technique for retrograde treatment of an infected root apex: Introduction and first results

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