View clinical trials related to Dental Caries.
Filter by:The purpose of this study is to determine the difference in success when placing implants immediately into an extraction site compared to delaying the implant placement until the extraction site has healed. In addition, the level of bone around the implants will be compared to determine if one method leads to better results over time.
The aim of this study is to determine whether an annual application of three (3) fluoride varnish doses over two weeks is at least as effective in reducing cavities as the current semi-annual application.
The purpose of this study is to conduct a community based, randomized control trial to determine if the use of chlorhexidine mouth rinse and xylitol-sweetened chewing gum will reduce the vertical transmission of caries between Alaska Native mothers to their infants.
The purpose of this study is to compare the efficacy of fluoride varnish (FV) applied once or twice a year with counseling to counseling alone in preventing early childhood caries (ECC) (tooth decay in children under the age of five).
The purpose of this study is to determine whether dental disease patterns and transmissable bacteria that are known to cause a severe form of dental decay in young children can be reduced or eliminated by treating mothers and their young infants early on with Chlorhexidine and fluoride varnish applications, respectively as part of a comprehensive Prevention Management Model.
The purpose of this study is to determine whether there are detectable health effects of low-level mercury exposure (from normal exposure to mercury-containing dental fillings) in the known target organs/systems affected by elemental mercury exposure.
The purpose of this study is to control the levels of bacteria that causes cavities in mothers by a combination of treatments that include fluoride and chlorhexidine varnishes and xylitol-chewing gum before the appearance of teeth in the mouth of their children. By doing that we expect to reduce the acquisition of the bacteria that causes cavities (the mutans streptococci) by the children which in turn will reduce the development of cavities.
The Children's Amalgam Trial is one of only two randomized trials of its kind, and the only such trial in the United States, to address the potential impact of mercury exposure from amalgam restorations on neuropsychological and renal function in children.
This study will examine the composition of dental plaque-a naturally occurring substance that sticks to the teeth and can cause tooth decay and gum disease. A better understanding of how plaque builds up in the mouth may help in developing improved ways of controlling it. Healthy normal volunteers between the ages of 18 and 65 who work at the National Institutes of Health main campus in Bethesda, Maryland, may participate in this study. Candidates will be screened for eligibility with a medical and dental history. This study involves a maximum of five visits to the dental clinic. At the first visit, participants will have a dental examination, and a mold will be made of the mouth. To make the mold, a small plastic tray containing impression material will be placed in the volunteer's mouth and held in place for about 2 minutes to set. The tray will then be removed and a mold will be made from the impression. The mold will be used to make the mouthpiece used in study 1, described below, and the tooth fittings used in study 2, also described below. Volunteers will participate in one of these two studies. Study 1. Volunteers in study 1 will have their mouthpiece checked at the second visit, have a teeth cleaning, and have the mold put in place. The mouthpiece will be worn for up to 8 hours, during which time soft foods can be eaten. Mouthwash should not be used while the device is in place. At the volunteer's third (last) visit, the mouthpiece will be removed and the volunteer will spit into a tube to collect saliva for examination for bacteria. Study 2. Volunteers in study 2 will have their teeth cleaned at the second visit and the tooth fittings placed onto the back teeth with a dental adhesive. The fittings will be worn for up to 72 hours, during which time volunteers can eat a regular diet and brush their teeth. Mouthwash should not be used while the fittings are in place. At the third, fourth and fifth visits, some of the fittings will be removed and, if necessary, the tooth surface will be polished. The last of the fittings will be removed at the fifth visit and the volunteer will spit into a tube to collect saliva for examination for bacteria.