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The dental pulp is a vital tissue that can be prone to physiological or pathological changes. Denticles, pulp stones, or other calcifications are frequently observed within "healthy" pulps. However, these tissue alterations can complicate the endodontic treatment. According to the American Association of Endodontists, teeth exhibiting "pulpal obliteration" fall into the moderate to high difficulty category of treatments, and their failure rate ranges from 10 to 19 per cent 1,2. In fact, pulpal calcification alone is not a reason for endodontic treatment. Root canal treatment is recommended and deemed necessary only in the presence of peri-radicular pathology or if the affected tooth shows symptoms. Today's techniques and materials offer higher standards, resulting in better root canal treatments and allowing proper handling of procedural errors. One of these materials is Cone beam computed tomography (CBCT) which is more reliable in detecting periapical lesions compared with digital periapical radiographs 3,visual aids, and ultrasonics 1. However, when performed by a non-experienced dentist, the risk of perforations, missed canals, stripping, and ledges arises 2. For the treatment of these challenging instances, the development of guided endodontics with a trephination guide, a metal sleeve, and an appropriate drill might be of interest 4. With several in vitro studies 5-7 and case reports 8,9 being published each year, this approach is becoming more prevalent in the literature. Additionally, a new endodontic guide software is being used to build new shapes for guides, sleeves, and drills, which will make it easier to attain correct access using the guiding technique. However, there is no information regarding the detection and negotiation of root canals, the dental substance loss, the treatment duration using the guided technique compared to the conventional technique for root canal treatments (RCTs) in clinical practice 10. This study is conducted to compare the conventional endodontic treatment to the guided approach in lower incisors with calcified root canals by focusing on the following aspects: the detection and negotiation of canals, the amount of substance loss, and the treatment duration.
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Seven patients having two calcified lower incisors requiring root canal treatment were selected. For each patient, one incisor was treated with the CET while the other incisor was treated with the GET by a single operator, a graduate endodontic resident. The intracanal space of the treated teeth was volumetrically measured and compared using the indirect post core technique and Blenderfordental software (version 3.3 lts). The time was recorded from the start of the treatment until the root canal was negotiated to determine the treatment duration. Various statistical tests including BM SPSS Statistics software version 25.0 and the Wilcoxon signed rank test were used to identify potential significant differences between the CET and the GET in terms of volume and treatment duration with a significance threshold set at p < 0.05.
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7 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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