Performance of Curing Times and Intensitis

The aim of the study is to compare the effect of high intensity light cure (2200 mw/cm2) for 1 second with low intensity light cure (1200 mw/cm2) for 20 seconds on the clinical performance of bulk fill resin composite restorations in compound Class II cavities of posterior teeth

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Key information

Conditions

Clinical Performance

Age range

20 year–40 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Faculty of Dentistry, Giza, Cairo Governorate, Egypt

About this study

The prepared cavities will be conditioned with 35% phosphoric acid gel for15 seconds, then will be rinsed and dried with compressed air. Then application of universal adhesive system to all cavity with bond brush then light cured for 10 seconds using LED light curing unit (1200 mw/cm2). Extra-Fill bulk fill resin composite will be applied in onebulk increment and will be light polymerized for 1 second using (LED) light curing unit (2200 mw/cm2).for intervention group Extra-Fill bulk fill resin composite will be applied in one bulk increment and will be light polymerized for 20 seconds using (LED) light curing unit (1200 mw/cm2) fot control group

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

Permanent premolars or molars.
Moderate to deep compound class II cavities.
Vital with the positive reaction to a cold thermal stimulus.
Absence of parafunctional habits

Exclusion criteria

Teeth with clinical symptoms of pulpitis such as spontaneous pain or sensitivity to pressure.
Non-vital teeth.
Secondary carious lesions.
Advanced periodontal disease

Treatment and study plan

High intensity light cure

Device

Bulk fill resin composite restoration cured with high intensity light curing (2200 mw/cm2)To achieve increased power and a wider spectrum for short exposure time (1 second) to overcome resin composite restoration techniques sensitivity and shorten the clinical procedure

Primary outcomes

Clinical performance

Time frame: Change from the baseline at 6 months and12 months
Clinical performance of bulk fill resin composite restorations will be evaluated by modified USPHS Criteria includes:
- Marginal Discoloration
- Marginal adaptation
- Secondary caries
- Postoperative sensitivity
For each criteria one score will be chosen from 3 scores (Alpha,Bravo&Charlie).

Sponsors and collaborators

Lead sponsor

Cairo University

Other

Registry information

Official study title

Effect of Different Curing Times and Intensities on The Performance of Compound Class II Bulk-Fill Resin Composite Restorations: (An In-Vivo and In-Vitro Study)

Important dates

Study start: 2022
Primary completion: 2022
Study completion: 2022
First posted: Apr 19, 2022
Registry last updated: Dec 6, 2023

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.

Published trials that share one or more normalized conditions with this study.

Completed