Performance of Curing Times and Intensitis

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)

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT05334901

Enrollment

Registered

2022-04-19

Start date

2022-04-22

Completion date

2022-10-22

Last updated

2023-12-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Clinical Performance

Brief summary

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

Detailed description

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

Interventions

DEVICEHigh intensity light cure

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

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

20 Years to 40 Years

Healthy volunteers

Yes

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

Design outcomes

Primary

Measure	Time frame	Description
Clinical performance	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).

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026