Influence of access cavity design, sodium hypochlorite formulation and <scp>XP</scp>‐endo Shaper usage on apical debris extrusion – A laboratory investigation

Jose, Jerry; Thamilselvan, Aishuwariya; Teja, Kavalipurapu Venkata; Rossi‐Fedele, Giampiero

doi:10.1111/aej.12637

Cited by 3 publications

(1 citation statement)

References 30 publications

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“…XPS and PTG developed with proprietary advanced metallurgy for greater flexibility can preserve the original anatomy of a root canal and improve its fatigue resistance [15,33]. The Hero Shaper increased root canal transportation, and the original root canal anatomy of the apical segment became more variational than before the preparations, both under CECs and TECs, because the Hero Shaper fails to comply with the anatomy of the root canal because of its poor flexibility, leading to increased transportation after preparation.…”

Section: Discussionmentioning

confidence: 99%

Apically extruded debris, canal transportation, and shaping ability of nickel-titanium instruments on contracted endodontic cavities in molar teeth

Zhang

Shen

et al. 2023

J Oral Sci

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Purpose: Apically extruded debris, canal transportation and shaping ability were compared between contracted endodontic cavities (CECs) and traditional endodontic cavities (TECs) after instrumentation with XP-endo Shaper (XPS), ProTaper Gold (PTG), ProTaper for hand-use (HPT) and Hero Shaper. Methods: The CECs or TECs groups were sub-divided into 24 groups according to root canal morphology and nickel-titanium (Ni-Ti) instruments. The weight of apically extruded debris was calculated using the Myers and Montgomery model. Pre-and postoperative images of teeth were scanned using micro-CT and the three-dimensional models were constructed and compared. Results: Under CECs or TECs, XPS and PTG produced less apical debris and formed less canal transportation than HPT and Hero Shaper (P < 0.05). XPS group under CECs extruded less apical debris than that under TCEs for round canals with curvature of 20°-35° (P < 0.05). The centering ratios of four tested instruments were higher under TECs than those under CECs (P < 0.05). The HPT and Hero Shaper had more transportation under CECs than that under TCEs (P < 0.05). No statistical difference was found regarding shaping ability among all the groups. Conclusion: Under CECs, XPS preserves the original root canal anatomy, meanwhile it produces less apical debris than the other instruments.

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Section: Discussionmentioning

confidence: 99%

Apically extruded debris, canal transportation, and shaping ability of nickel-titanium instruments on contracted endodontic cavities in molar teeth

Zhang

Shen

et al. 2023

J Oral Sci

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New Insights Regarding the Use of Relevant Synthetic Compounds in Dentistry

Dumitrel,

Matichescu,

Dinu

et al. 2024

Molecules

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Worldwide, synthetic compounds are used for both in-office and at-home dental care. They are a valuable resource for both prophylactic and curative treatments for various dental problems, such as tooth decay, periodontal diseases, and many more. They are typically preferred due to their broad range of actions and ability to produce targeted, rapid, and long-lasting effects. Using a 0.12% chlorhexidine mouthwash is capable of reducing the plaque index from 47.69% to 2.37% and the bleeding index from 32.93% to 6.28% after just 2 weeks. Mouthwash with 0.1% OCT is also highly effective, as it significantly lowered the median plaque index and salivary bacterial counts in 152 patients in 5 days compared to a control group (p < 0.0001), while also reducing the gingival index (p < 0.001). When povidone-iodine was used as an irrigant during the surgical removal of mandibular third molars in 105 patients, it resulted in notably lower pain scores after 2 days compared to a control group (4.57 ± 0.60 vs. 5.71 ± 0.45). Sodium hypochlorite is excellent for root canal disinfection, as irrigating with 1% NaOCl completely eliminated the bacteria from canals in 65% patients. A 0.05% CPC mouthwash proved effective for perioperative patient care, significantly decreasing gingival bleeding (p < 0.001) and suppressing Streptococcus levels even one week post-surgery. Lastly, a 6% H2O2 paint-on varnish and 6% H2O2 tray formulations successfully bleached the teeth of 40 patients, maintaining a noticeably whiter appearance up to the 6-month follow-up, with significant color differences from the baseline (p < 0.005). Synthetic compounds have a large research base, which also provides a greater awareness of their mechanism of action and potential adverse effects. For a better understanding of how they work, several methods and assays are performed. These are protocolary techniques through which a compound’s efficacy and toxicity are established.

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Assessment of debris extrusion on using automated irrigation device with conventional needle irrigation – An ex vivo study

Choudhari,

Teja,

Kumar

et al. 2023

Saudi Endodontic Journal

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Introduction: Irrigation is an essential aspect of effective cleaning and disinfecting the root canal system. Debris tends to extrude in due course of instrumentation and irrigation. The present study aimed to assess the debris extrusion using an automated root canal irrigation device. Materials and Methods: Sixty-six intact maxillary premolars with double-rooted morphology undergoing extraction were collected. They were allocated into three groups – Group I: control (distilled water irrigation), Group II: conventional needle irrigation, and Group III: automated root canal irrigation (n = 22). Each specimen was then inserted into the Eppendorf tube for debris collection. The canals were then instrumented to 40 size 0.04 taper using HyFlex CM rotary file system. Experimental irrigation varied based on the specific group allocated. Finally, after the irrigation, the collected debris was weighed using the analytical balance. Results: A statistically significant difference (P < 0.05) was elicited in the debris extrusion scores seen among different groups assessed. Conclusion: Debris extrusion was minimal with automated root canal irrigation device as compared to syringe needle irrigation.

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Influence of access cavity design, sodium hypochlorite formulation and XP‐endo Shaper usage on apical debris extrusion – A laboratory investigation

Cited by 3 publications

References 30 publications

Apically extruded debris, canal transportation, and shaping ability of nickel-titanium instruments on contracted endodontic cavities in molar teeth

Apically extruded debris, canal transportation, and shaping ability of nickel-titanium instruments on contracted endodontic cavities in molar teeth

New Insights Regarding the Use of Relevant Synthetic Compounds in Dentistry

Assessment of debris extrusion on using automated irrigation device with conventional needle irrigation – An ex vivo study

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