Resilient, non-hardening, high-bonding denture reline enhances patient comfort.
Denture liners and reline materials have historically had a combination of beneficial and adverse properties. Plasticized acrylic (typically containing toxic phthalate esters) bonds well but hardens over time. Silicone rubber stays soft but often promotes fungus growth. Relatively hard to begin with, polyurethane absorbs food colorant, grows fungus, and requires special processing.
Enter PNF (polyphosphazene), a synthetic rubber that addresses these problems, and provides additional benefits as well. Lang Dental?s NOVUS resilient denture liner material is the only PNF-based material available in the dental market. The positives of NOVUS for the practice, patient, and laboratory are numerous.
For optimal patient comfort, NOVUS absorbs shock and moves toward tissue during chewing. While it remains permanently resilient, NOVUS also exhibits sufficient firmness, allowing it to be readily molded around implant, bar, and overdenture abutments. It also engages deep undercuts, pre- and retro-mylohyoid fossae, tori, and exostoses. Consequently, NOVUS provides superior retention, stability, and support. NOVUS? low surface tension and low water absorption further enhance retention.
For patient safety and hygiene, phthalate-free NOVUS has been fully tested for toxicity and found to cause no hormonal or carcinogenic concerns. It is resistant to fungal growth and staining, so dentures can be kept clean and odor-free simply with normal oral hygiene regimens. NOVUS is formulated to eliminate sore spots, knife-edge ridges, and other problem areas often associated with tissue irritation.
NOVUS can be easily adjusted and polished at chairside using acrylic burs and pumice. It chemically bonds to the acrylic denture base in new dentures as well as rebases and relines, eliminating the risk of delamination and providing a strong, permanent bond. Because NOVUS is both biocompatible and non-toxic, it needs no periodic surface coating to restrict the migration of toxic plasticizers or periodic antimicrobial treatments. Patient visits are reduced.
Although not a common concern, NOVUS is radiopaque for quick identification if it is swallowed or inhaled, or after trauma.
For increased productivity in the lab, NOVUS is processed, packed, and cured via conventional compression-molding methods Supplied as a single-component dough, NOVUS requires no mixing. It is trial-packed with a spacer witha recommended thickness of 2 to 3 mm. For inventory convenience and minimal waste, NOVUS stays fresh indefinitely when refrigerated.
Tried, True, ?Resilient?
Originally developed by Dr. Lawrence Gettleman, NOVUS was manufactured by The Hygenic Corporation from 1989 through 1994. Production was stopped because Hygenic?s supplier, Ethyl Corp, stopped making the critical ingredient, polyphosphazene (PNF) gum rubber. The composition is identical to the Hygenic product. Lang re-introduced NOVUS to the dental profession in 2011. Underscoring the importance of well fitting, comfortable dentures, U.K. dentist Dr. Finlay Sutton contacted Lang to describe the case of a patient losing weight on a very restrictive diet because of severe lingual soreness under the mandibular denture. Within a week of lining the denture with NOVUS, the patient gained 7 pounds, expanded her diet, lost the discomfort, and needed no adjusting at the follow-up appointment.