Neha Pathania

Mandibular ridge resorption is a biomechanical and a complex disease that brings about chronic, progressive, cumulative and irreversible changes in bone structure resulting in severe impairment in fit and function of prosthesis. Some common hormonal, neurological, metabolic disorders can affect the adaptability of denture which can be diagnosed by a trained prosthodontist with proper history taking and clinical examination. If a denture stays inside or outside of the neutral zone, it will be unstable during functional & physiological activities such as talking, swallowing and mastication. Neutral zone technique is a long being used for the management of severely resorbed mandibular ridge. Various materials can used in recording neutral zone which have their own advantages and disadvantages. This technique serves as an alternative approach for the construction of mandibular complete denture. This technique is most effective for denture where there is a highly atrophic ridge, neuromuscular incoordination and history of denture instability. This clinical report describes in detail the fabrication of a complete denture in a patient with poorly formed mandibular ridge using neutral zone technique with addition of cast metal in mandibular denture for extra stability.   Keywords: Neutral zone, Stability, Neuromuscular incoordination, Admix material, Atrophic ridge, Residual ridge resorption

The coronavirus disease 2019 (COVID-19) pandemic has put the world in a panic situation. It has been evident that the geriatric population is more susceptible to get this infection, mainly due to advanced age and comorbidities and thus reduced immunity. In this ongoing crisis, individuals could-not visit a dental clinic, hence unattended dental needs and emergencies. The prosthodontic management in geriatric patients is essential for their well-being, as the partial or complete edentulism are very prevalent among them. However, a prosthodontist remains at high risk for exposure to the novel coronavirus through the aerosol-generation, possibly through the contaminated surfaces and the indirect contact with dental laboratories and the technicians through the impressions, dental stone casts, and the prosthetic appliances. It demands the implementation of the preventive measures, including performing emergency treatments only, rescheduling patients with suspected COVID, disinfecting surfaces and prosthodontic materials with biocidal substances, and using protective equipment such as the N95 masks, gowns, and face-shields.   Keywords: Coronavirus disease 2019 (COVID-19), (Personal Protective Equipment) PPE, Computer Aided Design/Computer Aided Machine (CAD/CAM).

The retention, stability and comfort of wearing denture is greatly influenced by the flow, quantity and consistency of saliva. Insufficient salivary output results especially in old-aged edentulous patients may result in denture sores because of lack of lubrication by saliva, thus, reducing patient’s ability to retain the prosthesis. Various approaches have been concernes with the use of reservoir with holes have been described in the literature. However the flow of salivary substitute is very difficult to control. Moreover the frequent cleaning of the denture required to maintain the patency of the reservoir holes poses various challenges to the patient. This article explains a novel technique for the incorporation of a reservoir with controlled salivary flow in complete denture to enhance the retention of the prosthesis and thus, improving the comfort of wearing denture and the speech of patient.   Keywords: Complete Denture, Hyposalivation, Xerostomia, Edentuluos, Saliva, Artificial saliva, Salivary substitute

Denture teeth and denture flange are two very important aspects of a complete denture. For aesthetic purpose while fabricating the complete denture prosthesis, restoring the labial fullness is a sensitive procedure. There are some clinical situations where the labial flange gives poor facial aesthetics. It is more occur in proclined maxillary anterior ridge or thick labial cortical plate with severe labial undercut. In this article we are presenting a case with thick labial cortical plates and severe labial undercut. So, we have modified the complete denture and delivered a prong (flangeless) denture to give more aesthetic appearance to the patient.   Keywords: Prosthodontics, Unconventional complete dentures, Labial fullness, Prong (Flangeless), Wing denture

Although various methods have been applied for getting a Complete Denture with perfect retention, but it is difficult to attain. Residual ridge resorption creates an ill-fitting denture, hence causing difficulty while eating and even dislodging during talking, even adding to the patient's embarrassment. Suction cup has been widely used for the retention & stability of dentures, but is known to carry few complications like palatal perforations and oro-antral communications. Here we present a case report of palatal hyperplasia due to the suction cup.   Keywords: Suction cup, Papillary hyperplasia, Vacuum chamber

A demanding procedure in the rehabilitation of atrophied edentulous jaws is implant insertion. Various bone augmentation procedures like ridge augmentation, sinus lift are possible today, which increases the risk and cost of dental implant treatment as well as the number of necessary operations. Patients with severely atrophied jaw bones paradoxically receive little or no treatment. Basal implants are helpful in avoiding the risky and expensive bone augmentation procedures. The basal bone is, which usually remains free from the infection and less prone to resorption, gives support to basal implants. In this article, we shall review the basal implantology. Keywords: Basal implants, Basal osseointegrated implants (BOI), Bone multicellular unit(BMU), Osseoadaptation.