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Completed

NCT Number: NCT06857474

The Effect of Bristle Brush, Rubber Cup, and Air Polishing on Tooth Surface Roughness of Scaled Teeth

This study investigates the effects of three polishing methods using a bristle brush, rubber cup, and air polishing on the surface roughness of scaled human teeth. The study aims to determine which polishing method is most effective in minimizing roughness and preventing plaque accumulation, thus contributing to improved oral health practices.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Khyber College of Dentistry, Peshawar

Peshawar, Khyber Pakhtunkhwa, 25000, Pakistan

About this study

Tooth surface roughness influences plaque retention and periodontal health. Polishing after scaling helps smoothen enamel surfaces, reducing bacterial adhesion. While various studies have assessed polishing techniques, there are inconsistencies in findings, particularly regarding air polishing vs. rubber cup polishing. Additionally, most studies focus on bovine teeth or indirect restorative materials rather than extracted human teeth. Using a randomized controlled trial (RCT) design, 56 extracted teeth will be divided into four groups: a control group (no polishing) and three experimental groups subjected to different polishing techniques. Surface roughness will be analyzed using a Scanning Electron Microscope (SEM). This study aims to fill these research gaps and provide region-specific data by determining which polishing method is most effective in minimizing roughness and preventing plaque accumulation, thus contributing to improved oral health practices.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Extracted human teeth with intact buccal or lingual surfaces.
  • Patients with a history of trauma affecting the oral cavity will be eligible, provided they meet other criteria (e.g., intact buccal or lingual surfaces).
  • Male and female patients aged 18 years and above.

Exclusion criteria

  • Teeth with restorations, caries, fractures, or significant developmental defects (e.g., amelogenesis imperfecta, dentinogenesis imperfecta , fluorosis etc).
  • Patients with systemic disease such as diabetes mellitus, cardiovascular disorders or any other condition will be excluded.
  • Mentally impaired patient.
  • Patients who have undergone scaling and polishing within the last 3 months.

Treatment and study plan

Bristle Brush Polishing

Procedure

After ultrasonic scaling, teeth will be polished using a bristle brush attached to a low-speed contra-angle handpiece with prophylaxis paste in a circular motion for 10 seconds.

Rubber Cup Polishing

Procedure

After ultrasonic scaling, teeth will be polished using a rubber cup attached to a low-speed contra-angle handpiece with prophylaxis paste in a circular motion for 10 seconds.

Air Polishing

Procedure

After ultrasonic scaling, teeth will be polished using sodium bicarbonate air polishing with an air polishing device in a circular motion for 10 seconds.

Ultrasonic Scaling

Procedure

Teeth in the control group will undergo ultrasonic scaling only, with no additional polishing procedures.

Primary outcomes

  1. Tooth Surface Roughness

    Time frame: Immediately after intervention (post-polishing SEM analysis).

    The arithmetic mean roughness (Ra) and root mean square roughness (Rq) of the enamel surface will be measured using Scanning Electron Microscopy (SEM) analysis and ImageJ software. This will assess the effectiveness of different polishing techniques in reducing surface roughness after ultrasonic scaling.

Sponsors and collaborators

Lead sponsor

Khyber Medical University Peshawar

Other

Collaborators

  • Khyber College of Dentistry (KCD) Peshawar

Registry information

Official study title

The Effect of Bristle Brush, Rubber Cup, and Air Polishing on Tooth Surface Roughness of Scaled Teeth: A Randomized Controlled Trial Study Using Scanning Electron Microscope: Randomized Controlled Trial

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Mar 4, 2025
Registry last updated
Jan 8, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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