Retention is the principle that describes how well the denture is prevented from moving vertically in the opposite direction of insertion. The better the topographical mimicry of the intaglio (interior) surface of the denture base to the surface of the underlying mucosa, the better the retention will be (in removable partial dentures, the clasps are a major provider of retention), as surface tension, suction and friction will aid in keeping the denture base from breaking intimate contact with the mucosal surface. It is important to note that the most critical element in the retentive design of a maxillary complete denture is a complete and total border seal (complete peripheral seal) in order to achieve 'suction'. The border seal is composed of the edges of the anterior and lateral aspects and the posterior palatal seal. The posterior palatal seal design is accomplished by covering the entire hard palate and extending not beyond the soft palate and ending 1–2 mm from the vibrating line.
If cared for properly, dentures should last a minimum of 5 years. Over time, the bone shrinks and causes the denture to become loose. The rate that this happens varies with each individual, but can be controlled by visiting a dentist regularly to ensure that the denture is fitting properly. An ill-fitting denture causes the bone to shrink more rapidly. To prolong the life of a denture, a dentist will often use a denture liner to refit the internal surface of the denture to the oral tissues.
Dr. Steve Horne began his career at Brigham Young University obtaining his BA in English. He earned his doctorate of dental surgery in 2007 from the University of Southern California where his pursuit for academic excellence landed him on the dean's list. He was recognized for his superior clinical skills and invited to help teach other dental students in courses on restorative dentistry, prosthodontics, and tooth anatomy. During dental school, he provided dental care for underserved populations of Los Angeles and Orange County, Mexico, and Costa Rica with the international volunteer organization AYUDA. After graduation from USC, Dr. Horne entered active duty with the U.S. Army and practiced dentistry at Fort Knox, Kentucky, for four years. During this time, in 2010, he was deployed as part of a medical unit to Baghdad, Iraq, to provide dental and triage support to military and civilian workers who were involved in the effort there. During his military service, he received multiple Army Achievement Medals, the Army Commendation Medal, and served as company commander. After leaving the Army in 2011, Dr. Horne joined a private practice in La Jolla, Calif., and became credentialed with Scripps Memorial Hospital La Jolla as a dental consultant. Health and education are of paramount importance to Dr. Horne, and since 2012, he has been writing dental articles for MedicineNet and WebMD to provide accurate information about oral health to the public. He is a member of the American Dental Association (ADA), Academy of General Dentistry (AGD), California Dental Association (CDA), and the San Diego County Dental Society and American Academy of Cosmetic Dentistry (AACD). He is a preferred provider with Invisalign and spends countless hours each year pursuing continuing education in order to maintain a standard of excellence in dentistry. Dr. Horne has been married for 15 years to his wife, Christy. They have 3-year-old twins, Camille and Trent, and very recently welcomed their third child, Colette Elise, on July 6! The heart and soul of the family is Roscoe, their chocolate Labrador.
Dentures are removable dental appliances that replace missing teeth. Unlike dental implants and dental bridges, which are more or less permanently affixed to the bone, dentures are prosthetic teeth attached to a supporting structure. Dentures can be removed at night, for cleaning, or whenever desired. The most affordable dentures are those made with traditional plastic prosthetic teeth, but even more expensive porcelain cosmetic dentures usually cost less than implants.
Remember: You can do serious harm to your denture and to your health by trying to adjust or repair your denture. Using a do-it-yourself kit can damage the appliance beyond repair. Glues sold over-the-counter often contain harmful chemicals and should not be used on a denture. If your denture breaks, cracks or chips, or if one of the teeth becomes loose, call your dentist immediately. In many cases, dentists can make necessary adjustments or repairs, often on the same day. Complicated repairs may require that the denture be sent to a special dental laboratory.
My teeth are never secure and have to reapply adhesive several times a day. Is this normal?? Think I'll find somewhere else for my lowers... get what you pay for. I was having severe pain in some of my lower teeth on that last visit, also. I asked for a Rx for antibiotics but Renee told me I did not need them. I now have an abscess and look like a squirrel. Thanks, Renee!! By the way, Renee, the mouth does NOT exaggerate!! Thanks for your great patient care!!!
An overdenture is a removable dental prosthesis that covers and rests on one or more remaining tooth roots. A removable partial denture is a dental prosthesis that replaces some teeth and is built around existing natural teeth. Both the overdenture and the removable partial denture may be connected to the remaining tooth roots or remaining natural teeth with anchors made of metal or plastic. These connections improve stability and the retention of both prostheses.
