Postoperative sensitivity of posterior restorations using a rapid high-intensity light-curing system: a clinical trial

Postoperative sensitivity of restorations of posterior teeth using a rapid high-intensity light-curing system: a randomized double-blind clinical trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

REBEC

Registry ID

RBR-5yh6xkx

Enrollment

Registered

2026-02-11

Start date

2026-06-03

Completion date

Unknown

Last updated

2026-03-02

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

Conditions

Dental Caries

Interventions

This is a randomized, double-blind clinical trial. The aim of this study is to compare postoperative sensitivity (POS) of a restorative system using a rapid, high-intensity light-curing protocol in bu

Eligibility

Age

18 Years to 70 Years

Inclusion criteria

Inclusion criteria: Participants aged between 18 and 70 years; participants must present at least two Class I or Class II restorations in vital teeth; cavities should present similar dimensions and a minimum depth of 3 mm; participants must have at least 20 teeth in functional occlusion; the selected teeth must present adequate proximal contact and confirmed vitality; eligible teeth will include carious lesions or defective existing restorations requiring replacement

Exclusion criteria

Exclusion criteria: Participants with unsatisfactory oral hygiene; participants with chronic or advanced periodontitis; participants that are undergoing fixed orthodontic treatment; exhibit significant occlusal wear in more than 10 posterior teeth; or require endodontic treatment; participants with a history of allergy to any materials used in the protocol; pregnant and lactating women; participants who regularly use anti-inflammatory drugs, analgesics, or psychotropic medications

Design outcomes

Primary

Measure	Time frame
To evaluate the influence of using a bulk-fill resin composite restorative system with a rapid, high-intensity light-curing protocol on postoperative sensitivity in posterior tooth restorations, compared with postoperative sensitivity following restorations performed with a bulk-fill resin composite using a conventional light-curing protocol.	—

Secondary

Measure	Time frame
To evaluate postoperative sensitivity of posterior restorations performed with a bulk-fill resin composite restorative system using rapid, high-intensity light curing (Group 1; 3 s photoactivation with an irradiance of 3050 mW/cm²) and conventional light curing (Group 2; 10 s photoactivation with an irradiance of 1069 mW/cm²) at baseline, 48 hours, 7 days, and 1 month. To evaluate functional properties (fracture and retention, marginal adaptation, wear, proximal contact, radiographic evaluation [when applicable], and patient satisfaction) of bulk-fill posterior restorations performed with a restorative system using rapid, high-intensity light curing (Group 1; 3 s photoactivation with an irradiance of 3050 mW/cm²) and conventional light curing (Group 2; 10 s photoactivation with an irradiance of 1069 mW/cm²) at baseline, 48 hours, 7 days, and 1 month. To evaluate esthetic properties (marginal discoloration, surface discoloration, gloss, color stability, and anatomical form) of bulk-fill posterior restorations performed with a restorative system using rapid, high-intensity light curing (Group 1; 3 s photoactivation with an irradiance of 3050 mW/cm²) and conventional light curing (Group 2; 10 s photoactivation with an irradiance of 1069 mW/cm²) at baseline, 48 hours, 7 days, and 1 month. To evaluate biological properties (secondary caries, tooth integrity, periodontal response, and overall oral health condition) of bulk-fill posterior restorations performed with a restorative system using rapid, high-intensity light curing (Group 1; 3 s photoactivation with an irradiance of 3050 mW/cm²) and conventional light curing (Group 2; 10 s photoactivation with an irradiance of 1069 mW/cm²) at baseline, 48 hours, 7 days, and 1 month.	—

Measure

Time frame

To evaluate postoperative sensitivity of posterior restorations performed with a bulk-fill resin composite restorative system using rapid, high-intensity light curing (Group 1; 3 s photoactivation with an irradiance of 3050 mW/cm²) and conventional light curing (Group 2; 10 s photoactivation with an irradiance of 1069 mW/cm²) at baseline, 48 hours, 7 days, and 1 month. To evaluate functional properties (fracture and retention, marginal adaptation, wear, proximal contact, radiographic evaluation [when applicable], and patient satisfaction) of bulk-fill posterior restorations performed with a restorative system using rapid, high-intensity light curing (Group 1; 3 s photoactivation with an irradiance of 3050 mW/cm²) and conventional light curing (Group 2; 10 s photoactivation with an irradiance of 1069 mW/cm²) at baseline, 48 hours, 7 days, and 1 month. To evaluate esthetic properties (marginal discoloration, surface discoloration, gloss, color stability, and anatomical form) of bulk-fill posterior restorations performed with a restorative system using rapid, high-intensity light curing (Group 1; 3 s photoactivation with an irradiance of 3050 mW/cm²) and conventional light curing (Group 2; 10 s photoactivation with an irradiance of 1069 mW/cm²) at baseline, 48 hours, 7 days, and 1 month. To evaluate biological properties (secondary caries, tooth integrity, periodontal response, and overall oral health condition) of bulk-fill posterior restorations performed with a restorative system using rapid, high-intensity light curing (Group 1; 3 s photoactivation with an irradiance of 3050 mW/cm²) and conventional light curing (Group 2; 10 s photoactivation with an irradiance of 1069 mW/cm²) at baseline, 48 hours, 7 days, and 1 month.

—

Countries

Brazil

Contacts

Public ContactCamila Falconi

Universidade Estadual de Ponta Grossa

camila-falconi@hotmail.es+55 (42) 3220-3154

Outcome results

None listed

Source: REBEC (via WHO ICTRP) · Data processed: Mar 14, 2026