Clinical trial NCT05777057: Assessing Accuracy of Kavo Diagnodent
Official title: Comparison Between KAVO DIAGNOdent and Digital Radiography in Occlusal Caries Detection (A Diagnostic Accuracy Study)
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: NA
Conditions: Condition
Lead sponsor: Cairo University
Sponsor class: OTHER
First posted: 2023-03-20
Enrollment: 42
Sex: ALL
Minimum age (years): 12
Maximum age (years): 60
Standard ages: CHILD
ADULT
Accepts healthy volunteers: yes
Allocation: NA
Intervention model: SINGLE_GROUP
Intervention model description: Extracted teeth are radiographed and examined by diagnodent and then sections are examined under light microscope
Primary purpose: DIAGNOSTIC

Brief summary: This study aims to evaluate the accuracy of kavodiagondent and compare with digital radiograph (vista scan).the gold standard is light microscope

Detailed description: Extracted teeth with intial caries (no cavitation)will be used to detect caries. The teeth will be numbered and each of the occlusal surfaces will be measured by DIAGNOdent with a conical probe in accordance with the manufacturer's instructions. The standard value for each individual tooth will be calibrated before each measurement by measuring in a region of sound tissue. The occlusal surfaces will be carefully scanned and measured 3 times when wet, and 3 times after they had been wiped with paper tissues and exposed to air for about 2 min in room temperature. The maximum value from each measurement will be registered and the mean values of the three data under wet and dry conditions, respectively, will be calculated. After an interval of 2 weeks, the procedure will be repeated under identical conditions. All occlusal surfaces will be photographed. The sites with the highest values will be indicated in the photographs in order to identify the location for the second measurement and for subsequent sectioning for light microscope examination.

The teeth will be arranged in pairs and mounted in plaster blocks. Reproducible radiographs will be obtained. This will be done by digital radiography (vista scan sensor). The radiographs will be examined by 4 radiologists. The observers will be instructed to select one of five ratings to represent his or her level of confidence that a carious lesion was present or not in the occlusal surfaces of the teeth. The following scale was used: 1 = definitely not caries, 2 = probably not Caries, 3 = questionable, 4 = probably caries, and 5 = definitely caries.

After the laser fluorescence measurements had been completed and the digital radiographs had been exposed, the teeth will be removed from the blocks and embedded in plastic. At the sites indicated in the photographs, buccolingual sections approximately 300 µm thick will be taken perpendicular to the occlusal surfaces using a water-cooled saw. The slices will then examined under light microscope. The lesion depth will be scored on a scale from 0 to 4, where 0 = sound, 1 = enamel caries limited to the outer half of the enamel, 2 = enamel caries in the inner half of the enamel, 3 = dentinal caries in the outer half of the dentine, and 4 =dentinal caries in the inner half of the dentine

Eligibility criteria: Inclusion Criteria:

* Extracted posterior teeth Visually intact occlusal surfaces or a variety of occlusal carious lesions, but no obvious cavities
* Removal of organic material and stains from the surfaces, the teeth will be immersed in 10% sodium hypochlorite solution for 20 min, followed by rinsing in distilled water for 20 min. The teeth will then stored in saturated thymol solution or formalin.
* The teeth will be arranged in pairs and mounted in plaster blocks.

Exclusion Criteria:

Teeth with deep cavity

-

Primary outcomes:
measure: To detect of occlusal caries
timeFrame: 4 months
Secondary outcomes:
Other outcomes:
Locations:
city: Cairo
country: Egypt
facility: Hanaa Mahmoud elsayed
Study officials:
References: