Decayed teeth that need root canal treatment and crown reconstruction. Disease of hard tissues of teeth, unspecified
Conditions
Interventions
Intervention 1: Intervention group: Perform direct restoration: first, the fragile and unsupported structure of the tooth is removed and the weak cusps of the tooth are shortened (cusps whose ismus is
Sponsors
Shahed University
Eligibility
Sex/Gender
All
Age
12 Years to 70 Years
Inclusion criteria
Inclusion criteria: Patients should be between 12 and 70 years old. Patients with permanent dental system. Patients with good oral health. Patients with normal occlusion. Patients present in the study must have at least one root-treated tooth (first or second molar, first or second premolar, maxilla or mandible) in need of crown restoration. One of the mesial or distal surfaces of the desired tooth is completely missing and does not have contact with the adjacent tooth. The adjacent tooth should be available for proximal contact. At least two walls of the root-treated tooth should be left after removal of caries and weak structures. Root canal treatment has been done with appropriate quality. The patient has signed the written consent form.
Exclusion criteria
Exclusion criteria: The person participating in the study has any severe systemic disease or allergy, disease or lesions inside the mouth. Have any periodontal diseases or pathological tooth decay or uncontrollable bleeding from the gums. Have severe malocclusion. Have parafunction and bruxism. Participants should be pregnant or lactating women. have a mental or physical disability. Have untreated disorders of the jaw joint.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Comparison of the proximal contour of the tooth receiving the restoration with the proximal contour of the adjacent tooth. Timepoint: Immediately after the completion of the restoration of the dental crown. Method of measurement: In order to evaluate the proximal contour, three restorative dentists involved in this study were fully trained and their opinion was checked in accordance with the initial study (Pilot Study) (kappa coefficient 0.86 based on a statistical test). In order to evaluate the proximal contour, a digital radiograph (DigiMed-prox wireless Portable X-Ray camera, Seoul, South Korea) with a parallel angle (using the XCP holder, Densply, USA) will be prepared from the treated tooth and the adjacent teeth. Then the images are transferred to the computer and at first, in order to remove the possible distorting effect of the examiner's opinion (blindness), all points of the teeth will be repaired by Adobe Photoshop software and the adjacent teeth will be the same color. In this way, a special spectrum of gray color will be placed in all the mentioned areas by specifying the color code. Then, just to specify the side of the tooth that has been restored and the number of the restored tooth, a brief explanation in a fixed writing box. (Text Box) will be registered in the upper right corner of the image. Then, in this study, the following two methods are used to evaluate the proximal contour: 1. VAS (Visual Analogue Scale) test: for this purpose, three restorative dentists with at least 15 years of work experience evaluated the proximal contours of the restored teeth in the direction The occlusal gingival will be checked and the quality of this contour will be recorded as a number from zero to 10 in VAS format (zero is very bad and 10 is very good). It should be noted that VAS is a standard visual ruler that can be used in various sources to rank many variables that cannot be reported numerically and especially in cases that depend on the feelings of the per | — |
Secondary
| Measure | Time frame |
|---|---|
| Proximal contact intensity between the tooth receiving the restoration and the adjacent tooth. Timepoint: Immediately after the restoration. Method of measurement: A dynamometer device to which a bow-shaped dental floss is connected, which quantitatively reports the intensity of proximal contact by means of a sensor. | — |
Countries
Iran (Islamic Republic of)
Contacts
Public ContactZahra Farajian zadeh
Shahed University
Outcome results
None listed