This protocol presents a randomized clinical trial comparing Hyalone (hyaluronic acid) with calcium hydroxide as intracanal medicaments in mandibular first molars with necrotic pulp and symptomatic apical periodontitis. The study aims to determine whether Hyalone provides better postoperative pain reduction and periapical healing than calcium hydroxide.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
24
Hyalone will be used as an intracanal medicament during two-appointment root canal treatment. The medicament will be placed in the root canals after biomechanical preparation and irrigation and maintained for 7 days before final obturation.
Calcium hydroxide will be used as an intracanal medicament during two-appointment root canal treatment. The medicament will be placed in the root canals after biomechanical preparation and maintained for 7 days before final obturation.
Faculty of Oral and Dental Medicine, Future University in Egypt
Cairo, Egypt
post-operative pain
Postoperative pain will be assessed using the Modified Visual Analogue Scale (mVAS), an 11-point numeric scale with a minimum score of 0 and a maximum score of 10, accompanied by corresponding facial-expression icons at each level. Higher scores indicate worse pain: a score of 0 represents "no pain" and a score of 10 represents "the worst pain imaginable." Scores will be categorized as no pain (0), mild pain (1-3), moderate pain (4-6), and severe pain (7-10). Each participant will record pain intensity in a standardized pain diary at each designated time point following intracanal medicament placement. Mean pain scores will be compared between the calcium hydroxide (control) and Hyalone (intervention) groups at each time point.
Time frame: 6 hours,12hours,24 hours, 72 hours & 1week
periapical healing
Periapical healing will be assessed radiographically using cone-beam computed tomography (CBCT), evaluated in the axial, sagittal, and coronal planes with the mesial and distal roots scored separately. Healing status will be scored using the Cone-Beam Computed Tomography Periapical Index (CBCT-PAI), and follow-up scores will be compared with the baseline preoperative CBCT to determine change in periapical lesion size. Based on combined clinical and radiographic findings, each treated tooth will be classified as healed (no clinical signs or symptoms, with complete radiographic resolution of the periapical lesion or a CBCT-PAI score of 1 or 2), healing (no clinical signs or symptoms, with a reduction in lesion size and CBCT-PAI score compared with baseline), or diseased (persistent or new clinical signs or symptoms, or no reduction/an increase in lesion size or CBCT-PAI score). For statistical analysis, outcomes will be dichotomized: teeth classified as healed or healing will be conside
Time frame: 6months & 12 months
preapical healing
Periapical healing will be assessed radiographically using cone-beam computed tomography (CBCT), evaluated in the axial, sagittal, and coronal planes with the mesial and distal roots scored separately. Healing status will be scored using the Cone-Beam Computed Tomography Periapical Index (CBCT-PAI), and follow-up scores will be compared with the baseline preoperative CBCT to determine change in periapical lesion size. Based on combined clinical and radiographic findings, each treated tooth will be classified as healed (no clinical signs or symptoms, with complete radiographic resolution of the periapical lesion or a CBCT-PAI score of 1 or 2), healing (no clinical signs or symptoms, with a reduction in lesion size and CBCT-PAI score compared with baseline), or diseased (persistent or new clinical signs or symptoms, or no reduction/an increase in lesion size or CBCT-PAI score). For statistical analysis, outcomes will be dichotomized: teeth classified as healed or healing will be conside
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Time frame: 6 month and 12 month