Described herein generally are sterilization devices that can allow sterilization of a subgingival area, periodontal pocket(s), and/or gum tissue. Methods of using these devices are also described.

An oral irrigator handle including a housing and a first fitting, the first fitting including a first fitting inlet in fluid communication with a handle inlet in fluid communication with a fluid source and a first fitting outlet in fluid communication with the first fitting inlet. The handle includes a seal positioned around the first fitting and between the first fitting inlet and the first fitting outlet. A second fitting includes a second fitting inlet in fluid communication with the first fitting outlet and a second fitting outlet in fluid communication with the second fitting inlet. A bottom portion of the second fitting seats on a portion of the first fitting so that the seal engages an interior surface of the second fitting, a flow passage is coupled to the second fitting and in fluid communication with the second fitting outlet.

Embodiments relate to a systems and methods for preventative irradiative dental treatment. In accordance with one embodiment, a system and method include using a radiation source to generate a radiation; using an optic disposed to accept the radiation to internally reflect he radiation at a first end; using at least one side of the optic to contact a dental hard tissue; using the optic to couple some of the radiation into the dental hard tissue; and, using a controller to control a parameter of the radiation to heat a surface of the dental hard tissue.

A hand tool apparatus is disclosed as providing an elongate, adaptive ergonomic handle portion. In at least one embodiment, the handle portion provides a pair of opposing handle ends. At least one of the handle ends provides an instrument portion. An at least one bendable core is positioned between the handle ends, the at least one core capable of being selectively bent into a variety of desired shape configurations, and substantially maintaining those shape configurations until the core is intentionally bent into a different desired shape configuration. As a result, the handle portion is capable of ergonomically conforming to a hand of a user while shifting a weight, as well as instrumentation forces and fulcrum of the apparatus and encouraging proper positioning of the instrument portion during use of the apparatus, regardless of the specific procedure to be performed using the apparatus.

A hand tool apparatus is disclosed as providing an elongate, adaptive ergonomic handle portion. In at least one embodiment, the handle portion provides a pair of opposing handle ends. At least one of the handle ends provides an instrument portion. An at least one bendable core is positioned between the handle ends, the at least one core capable of being selectively bent into a variety of desired shape configurations, and substantially maintaining those shape configurations until the core is intentionally bent into a different desired shape configuration. As a result, the handle portion is capable of ergonomically conforming to a hand of a user while shifting a weight, as well as instrumentation forces and fulcrum of the apparatus and encouraging proper positioning of the instrument portion during use of the apparatus, regardless of the specific procedure to be performed using the apparatus.

A dynamic seal for use in a dental handpiece is disclosed. The dynamic seal includes a seal carrier including a first portion having a first feature for receiving a first compliant member and a second portion having a second feature for receiving a second compliant member, and a flange disposed between the first feature and the second feature.

Various embodiments for cleaning carious regions of a tooth are disclosed herein. For example, a dental apparatus can include a fluid platform having a chamber sized and shaped to retain fluid. The chamber can be configured to be coupled to the tooth over the carious region. A pressure wave generator having a distal end may be configured to be positioned in the chamber. The pressure wave generator may be configured to generate pressure waves in the retained fluid sufficient to clean the carious region.

Methods and compositions for reducing silver stains on teeth treated using silver diamine fluoride are provided. The methods for removing stains comprise the steps of etching a stained area, the application of sodium hypochlorite, the application of hydrogen peroxide and the application of a remineralization solution to the stained area.

Methods and compositions for reducing silver stains on teeth treated using silver diamine fluoride are provided. The methods for removing stains comprise the steps of etching a stained area, the application of sodium hypochlorite, the application of hydrogen peroxide and the application of a remineralization solution to the stained area.

Provided is a dental laser treatment apparatus that can facilitate sterilization and cleaning work in a treatment with laser beams and also during and after the treatment, which puts less physical and mental burdens on a patient, offers a prospect of quick and reliable therapeutic effects, and allows for faster healing. A dental laser treatment apparatus may include an apparatus body including a laser beam generating device that generates a laser beam; a laser beam application device including an optical fiber that supplies the laser beam generated by the laser beam generating device and a handpiece that includes an application port for the laser beam attached on a distal portion of the optical fiber; and a cleaning solution supply unit that discharges sterilizing/cleaning solution from a sterilizing/cleaning solution supply unit.