A 50-year-old female presented with a 12-year history of increasingly severe symptoms affecting the oral mucosa following dental work. On the first occasion, the patient noted a tingling sensation in her lips and tongue on the day after dental work. She experienced worsening symptoms over the next few years, noticing that they always occurred around 24 hr after having crowns replaced or a new c...

Objective The objective of the present study was to compare patients' acceptability, comfort and stress with conventional and digital impressions. Materials and Methods Thirty young orthodontic patients (15 males and 15 females) who had no previous experience of impressions were enrolled in this study. Conventional impressions for orthodontic study models of the dental arches were taken using...

AIM OF THE STUDY To evaluate and compare the linear dimensional changes of the three representative polyvinyl siloxane (PVS) impression materials and to compare the accuracy of single mix with double mix impression technique. METHODOLOGY A study mold was prepared according to revised American Dental Association specification number 19 for nonaqueous elastic dental impression materials. Three ...

objective: the aim of this study was to evaluate the dimensional stability of casts made from an alginate impression material poured immediately and stored after specific periods. materials and methods: the common alginate used in iran (super; iralgin, golchai co., tehran, iran) was tested. a master model was mounted on a special device and used to obtain the impressions. these impressions were...

background to prevent diseases transmission, infection control in dental offices without reducing the accuracy and dimensional stability of impression materials is very important. objectives the aim of this study was to evaluate the effects of sanosil disinfectants on the dimensional stability of some usual impression materials. materials and methods three types of impression material, namely, ...

C onstructing a casting that seats well and is retentive and comfortable to the patient taxes even the most conscientious dentist. The final seating is dependent upon so many sequential elements that any single procedure may prove to be an unacceptable link, resulting in failure. We must face the fact that under average conditions, when the casting, whether extracoronal or intracoronal, comes f...

Figure 1.Maxillary PVS impression demonstrating defect in palatal region. A maxillary complete denture (CD) impression often demonstrates a defect in the palatal region of the edentulous arch. This problem commonly relates to air trapped in the impression material or mishandling of the tray seating; the bubble formed in the impression can compromise the fit of the CD or impair tissue health. On...

To formulate an alginate dental impression material with virucidal properties, experimental alginate dental impression materials were developed and the formulations adjusted in order to study the effect on pH profiles during setting. Commercially available materials served as a comparison. Eight experimental materials were tested for antiviral activity against Herpes Simplex Virus type 1 (HSV-1...

Trapped foreign bodies and tissue reactions to foreign materials are commonly encountered in the oral cavity. Traumatically introduced dental materials, instruments, or needles are the most common materials referred to in the dental literature. This paper describes an iatrogenic foreign body encapsulation in the oral mucosa, clinically appearing as 5 × 10 mm tumor-like swelling with an intact o...