Analyzing the Effect of Air Polishing on Tooth Surfaces With Two Imaging Methods

January 5, 2022 updated by: Vecihe Merve Balta Uysal, Kocaeli University

Analyzing the Effect of Sodium Bicarbonate and Glycine Air Polishing on Tooth Surfaces With Two Different Imaging Methods

Micro-CT is a non-destructive imaging method with high resolution and allows to examine all tooth structures individually. Pre- and post-application images obtained by micro-CT can be superimposed and differences can be precisely detected. Intraoral scanners in CAD/CAM systems also provide non-destructive image scanning. CAD/CAM are systems that are widely used in dentistry today. Access to the device is easier than micro-CT. This study was focused on to compare two different imaging methods by assessing changes caused by sodium bicarbonate and glycine air polishing on the tooth surfaces.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The patients were recruited from individuals seeking periodontal and/or dental treatment at Kocaeli University, Faculty of Dentistry. The teeth samples were collected from the participants who have a single-rooted tooth with the gingival recession on all surfaces and need to be extracted. All patients who met the criteria were informed about the study. Patients who gave written informed consent were included. Before the teeth extractions, root surfaces were marked with a bur at the level of the gingival margin. Extractions were performed under local anesthesia with 2% xylocaine adrenalin. Fourteen single root extracted teeth were included into the study. The crown and exposed root surface were air polished using glycine and sodium bicarbonate powders at instrumentation time of 5s, combinations of medium and maximum power and medium water settings, distance of 5mm and angulation of 60 degree.

Samples were scanned before and after air polishing with a high-resolution micro-CT device. The scanning conditions were 100 kVp; 100-mA, 0.5-mm Al/Cu filter; 13.1-μm pixel size; and rotation at 0.2 steps. According to the manufacturer's instructions, each sample was rotated 360°. The mean scanning time was around 1hour. The teeth surfaces were digitalized before and after air polishing with an intraoral scanner. The mean scanning time was around 10 second. The virtual images of the scanned teeth were saved in stereolithography (STL) format. The defect volume was estimated.

The data were analyzed using commercially available statistical analysis software. Descriptive statistics that were used to analyze the results included the mean, standard deviation, median, minimum, and maximum. Mann-Whitney U test was performed to compare differences between two independent variables. Wilcoxon test was used to compare differences between two dependent variables. P-values less than 0.05 were considered statistically significant.

Study Type

Observational

Enrollment (Actual)

14

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Turkey
      • Kocaeli, Turkey, 41190
        • Kocaeli University, Faculty of Dentistry

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

The patients were recruited from individuals seeking periodontal and/or dental treatment at Kocaeli University, Faculty of Dentistry.

Description

Inclusion Criteria:

Being older than age of 18, Willing to participate the study, To have a single rooted tooth with gingival recession on all surfaces and need to be extracted, The tooth has to be free of caries, defects and restorations.

Exclusion Criteria:

Have history of infectious diseases like Hepatitis and/or HIV (+).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Micro-CT
Samples were scanned before and after air polishing with a high-resolution micro-CT device. The scanning conditions were 100 kVp; 100-mA, 0.5-mm Al/Cu filter; 13.1-μm pixel size; and rotation at 0.2 steps. According to the manufacturer's instructions, each sample was rotated 360°. The mean scanning time was around 1hour.
Device: Micro-CT
Micro computed tomography (micro-CT) is an imaging method in which cross-sectional images are obtained and these images are transferred to the computer through specific software, processed and stored.
CAD/CAM
The teeth surfaces were digitalized before and after air polishing with an intraoral scanner. The mean scanning time was around 10 second. The virtual images of the scanned teeth were saved in stereolithography (STL) format.
Device: CAD/CAM
CAD/CAM (computer aided design-computer aided manufacturing) is a production method that is frequently used in many areas of technology. These systems are composed of a data acquisition unit, software for designing virtual restoration, and a computerized milling device.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Defect volume
Time Frame: 5 second
The teeth were divided into two groups, the crown and exposed root surface were air polished using glycine and sodium bicarbonate powders at instrumentation time of 5s, combinations of medium and maximum power and medium water settings, distance of 5mm and angulation of 60 degree. Samples were scanned in a micro-computed tomography (micro-CT) and CAD/CAM at baseline and then after powder treatment and the defect volume was estimated.
5 second

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Kocaeli University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 17, 2020

Primary Completion (Actual)

August 17, 2020

Study Completion (Actual)

September 14, 2020

Study Registration Dates

First Submitted

January 5, 2022

First Submitted That Met QC Criteria

January 5, 2022

First Posted (Actual)

January 19, 2022

Study Record Updates

Last Update Posted (Actual)

January 19, 2022

Last Update Submitted That Met QC Criteria

January 5, 2022

Last Verified

January 1, 2022

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • KOU GOKAEK 2020/08.07

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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