In Vivo Temperature Changes Caused by Exposure to Short- and Long-wavelengths
University of Florida
Summary
Red light has been shown to be less harmful than blue light in vitro and in vivo. Although red light has been already introduced in the market and is currently being used in patients for several reasons, no data exist on the use of red light applied to restorative procedures. This study aims to specifically measure the in vivo temperature rise in simulated restorative procedures using blue light (standard) and red light and its post-operative sensitivity rates.
Description
Light-cured materials revolutionized dentistry as they allowed to control the setting of the materials in a timely manner simply upon light exposure. Although blue light has been routinely used to cure dental restorative materials for over 50 years, there are still potential risks to dental patients. These risks include gingiva burn or recession and pulp inflammation that can lead to necrosis in more severe situations due to the heat generated by this short wavelength (blue light). In addition, blue light has direct deleterious effects on cells, including irreversible imbalance in reactive oxy…
Eligibility
- Age range
- 21–35 years
- Sex
- All
- Healthy volunteers
- Yes
Inclusion Criteria: * ASA I classification * Fully erupted pre-molar(s); * Absence of caries; * Absence of restoration. Exclusion Criteria: * Radiographic constriction of the pulp chamber; * Absence of apical closure; * Formation of pulp stones or diffuse calcification at the pulp chamber; * Presence of active carious lesions; * Diagnosed reversible or irreversible pulpitis; * Existing periapical lesion; * Existing or planned root canal treatment.
Interventions
- DeviceRed Light
Light Curing with Red Light
- DeviceBlue Light
Light Curing with Blue Light
Location
- University of Florida College of Dentistry Dental Clinical Research UnitGainesville, Florida