The aim of the study is to assess and compare canine occlusal relation in children with carious primary molars before they are treated by stainless steel crowns under general anesthesia and after their placement ,to evaluate the possibility and the time required for the post operative canine relation to resolve and how the treatment affects frequency and type of food intake.
1. Children who require immediate full mouth rehabilitation under general anaesthesia will be recruited from the General Anesthesia (GA) unit in the Department of Pediatric Dentistry, Faculty of Oral and Dental Medicine, Cairo University. 2. Two postgraduate students will be filling the patient's assessment chart as shown in appendices prior to treatment. They will measure the canine occlusal relation. The measurements will be made in the maximum intercuspation position (MIP) in the centric occlusion (CO) guided by the operators' hand. 3. Before general anesthesia, an anesthesiologist and an internal medicine specialist will examine participating children, and the necessary preclinical tests will be requested. 4. On the day of the procedure, parents of the participants will fill a questionnaire asking for previous dental treatments of the child and his/her medical history and acceptance to join the study (written consent). 5. The canine occlusal relationship of both upper and lower primary canines shall be determined by measuring the vertical dimension from the gingival zenith of the upper canine and the gingival zenith of the lower canine at the right and left sides. 6. The distance shall be determined using a digital caliper (Shenzhen Jiabaili Electronic Commerce Co., Ltd), and the reading will be photographed by a digital camera (iPhone 11 dual 12 MP Ultra-Wide and wide camera, Apple Inc.). 7. For further accuracy, this will be repeated twice, and in case of the presence of a difference, the measurement will be repeated for the third time, and the mean of the values will be calculated. 8. The treatment will be performed under general anesthesia, tooth preparation will be done, and the eight Stainless-steel Crowns (3M™ ESPE™ Stainless Steel Primary Molar Crowns) will be seated. 9. The measured values will be recorded preoperatively and immediately after the treatment while the patient is unconscious. 10. Pre-operative determination of the canine occlusal relation of the upper and lower primary canines will be done; after placement during the operation and after 1, 2 and 6 months follow up period.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
SCREENING
Masking
NONE
Enrollment
73
Measuring the vertical distance between the gingival zenith of the upper canine to the gingival zenith of the lower canine
Cairo University
Giza, Select A State Or Province, Egypt
Change in the canine occlusal relationship
The change of the canine occlusal relationship in millimeters using digital caliper
Time frame: Day 1
The time needed for the bite to re-adapt
The time needed for the bite to re-adapt throughout days using digital caliper
Time frame: ''1 month"
The time needed for the bite to re-adapt
The time needed for the bite to re-adapt throughout days using digital caliper
Time frame: ''2 months"
The time needed for the bite to re-adapt
The time needed for the bite to re-adapt throughout days using digital caliper
Time frame: ''6 months"
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