Dental impressions can act as vehicle for various types of microorganisms E.g. Hepatitis B, C, HIV, Mycobacterium, Herpes simplex, Ebola, MERS-CoV etc. The most effective way to prevent their spread through dental impression is to make the impression sterile just after coming out of mouth. Various methods of impression disinfection have been described in literature having their own advantages, disadvantages and effects on impression material. In order to enhance the knowledge and improve the behavior of dental health care workers about impression disinfection, a structured literature review of the current disinfection techniques has been carried out. It will also provide knowledge about mechanism of action, concentration of usage along with commercial preparations available of different disinfectants. HOW TO CITE: Mushtaq MA, Khan MWU. An overview of dental impression disinfection techniquesa literature review.

The aim of this study was to determine the level of awareness about knowledge and practices of complete denture hygiene in a tertiary care dental hospital of Lahore.

Denture Induced Hyperplasia or Epulis fissuratum is a tumor-like reactive lesion of oral mucosa because of chronic irritation caused by ill-fitting dentures. It is mostly presented in female denture wearers with a predilection to maxilla. These lesions can be of varying sizes ranging from few centimeters to extensive involving the whole arch. These can be managed conservatively or by complete surgical excision depending upon the size and complexity of the lesion. In this case report, an enormous denture induced hyper-plastic lesion in an old male denture wearer is presented. The lesion was located in the maxillary left labial vestibule. This lesion was excised surgically, followed up for change of tissue conditioner up to one month. After completion of healing of wound, new complete denture was fabricated.

Congenital or acquired defects of soft palate cause physical, functional and psychological disabilities. Surgical closure or prosthetic rehabilitation are the two treatment modalities. If surgery is contraindicated, prosthetic rehabilitation is the alternative treatment option. Pharyngeal obturator prosthesis provides adequate closure of the velopharyngeal insufficiency. In this case report, a young patient is treated for velopharyngeal insufficiency with pharyngeal obturator as the patient had refused to undergo surgical closure. The prosthesis was successfully fabricated and was evaluated for proper functioning. It improved speech, deglutition and psychological well-being of the patient.

Objective: To compare changes, in linear dimension of Alginate impression by disinfection with immersion in 0.525% Sodium Hypochlorite solution and no disinfection. Study Design: Randomized Control Trial. Setting: Department of Prosthodontics, Punjab Dental Hospital Lahore. Period: April 2018 to September 2018. Material & Methods: Sixty alginate impressions were made of a stainless steel die and were randomly divided into two groups. The 30 control group impressions were poured only after rinsing with tap water, whereas the 30 experimental group impressions were first immersed in 0.525% Sodium Hypochlorite solution for 10 minutes and then poured after rinsing with tap water. The distance between two engraved lines C and D on die were measured in the casts of both groups. Results: The mean difference of mean dimensional changes between both methods was 0.01mm. Conclusion: The disinfection of the alginate impression material by immersion in 0.525% Sodium Hypochlorite solution does not cause significant effect on dimensional stability of alginate impression material.