Nadia Khalifa

• DDS, MSc, PhD
• Prosthodontist at University of Sharjah

Increased oxidative stress in bone cells is known to negatively alter favorable bone regeneration. This study aimed to develop a porous polycaprolactone (PCL) membrane incorporated with 25 wt % Vitamin C (PCL-Vit C) and compared it to the PCL membrane to control oxidative stress and enhance biomineralization in vitro. Both membranes were characteri...

Introduction and importance Aliments such as congenital conditions, pathological, and iatrogenic circumstances may result in mandibular defects that can severely disturb the patients' oral health, functions (mastication, speech), aesthetics, and quality of life and present a rehabilitating challenge. Case presentation we present a multidisciplinar...

Purpose: To assess wear, fatigue, and fracture resistance of different CAD/CAM onlays, milled from monolithic Zirconia (Zr), hybrid ceramic (EN), and lithium disilicate (LS), when used as abutments for removable partial denture frameworks fabricated from acetal resin (AR) or cobalt-chromium (Co-Cr). Methods: Standard onlays and RPD framework wer...

Aims Delivery of clinical dental education, as opposed to clinical medicine, is particularly challenging due to the obligatory aerosol-generating procedures (AGPs) used in dentistry, which are known to facilitate the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Hence, using AGPs and working in close proximity to patients...

Introduction Maxillofacial trauma is associated with severe loss of soft and hard tissues that lead to aesthetic and functional disfigurements, adverse psychological impacts on the patient's general and oral health, and decreased quality of life. Therefore, treatment of maxillofacial trauma is challenging. Presentation of case We present three pat...

Purpose This study aimed to assess the 3-body wear of prefabricated and 3D-printed artificial denture teeth. Materials and methods Four groups of artificial teeth were used; 3D-printed polymethylmethacrylate (PMMA) teeth (PR) and 3 prefabricated commercially available denture teeth: PMMA (Gnathostar, GN), PMMA (SR Orthotyp PE, SR), and Nanohybrid...

Aim: The aim of this prospective study is to evaluate the treatment outcomes and patient satisfaction following the use of fixed immediately loaded corticobasal implant-supported prostheses. Materials and methods: One hundred and seventy-four corticobasal implants (basal cortical screw, BCS implant design) were inserted in 20 consecutive patient...

Objectives To evaluate the fatigue and fracture resistance of ultra-thin laminate veneers (UTLV) with two different thicknesses and two different bonding protocols. Materials and Methods A total of 64 flat enamel surfaces were assigned to either 0.2 or 0.4 mm UTLV. The UTLV were further subdivided and assigned to one of two bonding techniques: adhe...

Background Titanium dioxide dental implants have a controversial effect on reactive oxygen species (ROS) production. ROS is necessary for cellular signal transmission and proper metabolism, but also has the ability to cause cell death as well as DNA, RNA, and proteins damage by excessive oxidative stress. This study aimed to systematically review t...

This study reports the remineralizing potential and biocompability of titanium dioxide doped phosphate glass (TDPG). Glass paste was prepared with polyacrylic acid and applied as a thin coat on etched dentin for different periods Normal and etched dentin were used as controls. Remineralization potential was tested using Atomic force microscopy, sca...

Background Covid-19 is a virus known for weaseling out of preconceived notions and precautions, increasing the dire need for combative measures to match. However, SARS-CoV-2 continuously poses fundamental problems to dental personnel owing to work in close immediacy to the patient during treatment and aerosol-generating procedures (AGPs). Resuming...

Objectives To evaluate the treatment outcomes and patient satisfaction following the use of fixed, immediately loaded, basal implant- reconstructive prostheses in a cohort of patients who underwent marginal mandibulectomy. Methods Ninety-seven Basal Cortical Screw implants (BCS®1; Dr. Ihde Dental AG, Gommiswald, Switzerland) were inserted in 15 ma...

Background This study aimed to assess students’ perceptions of the gains and challenges of the patient-centered comprehensive care methodology of dental clinical training. Methods Self-administered questionnaires were completed by 58 out of 93 students following the end of the academic term 2017–2018. Results Most of the students 43 (74%) underst...

Background Candida’s potential association with dental caries has previously been reported in children. This research aimed at investigating the associations between Candida species in whole saliva and dental and periodontal health indices in a sample of adult patients. Methods A cross-sectional study involving 160 patients investigated the associ...

Digital dentistry has gained increasing importance in clinical dental practice in recent years, and the purpose of this chapter is to help provide insights into the specifications of some of the more common intraoral scanners available in the market today. There are innumerable choices of intraoral scanners available that suit a variety of budgets....

Background: Nearly a quarter of the population in the UAE has type 2 diabetes mellitus (T2DM), and this medical condition is associated with poorer oral health. The effects on oral health-related quality of life (OHRQoL), however, have not been examined in this population. Therefore, the objective of this study was to assess the impact of oral hea...

Introduction The prosthetic rehabilitation of mandibular defects owing to tumor resection is challenging, especially when the patient has undergone subsequent radiotherapy. Presentation of case A 46-year old male presented with a marginal mandibular resection. Following surgery, the patient received adjunctive radiation therapy with a total dose o...

Background: Improving patient satisfaction and quality of life is of great importance when considering the different prosthetic treatment options for patients with severely resorbed residual alveolar ridges. We aimed to evaluate and compare patients' satisfaction when changing from fixed, removable, and/or conventional implant prostheses to basal...

Background: Nearly a quarter of the population in the UAE has type 2 diabetes mellitus (T2DM), and this medical condition is associated with poorer oral health. The effects on oral health-related quality of life (OHRQoL), however, have not been examined in this population. Therefore, the objective of this study was to assess the impact of oral heal...

Background Nearly a quarter of the population in the UAE has type 2 diabetes mellitus (T2DM), and this medical condition is associated with poorer oral health. The effects on oral health-related quality of life (OHRQoL), however, have not been examined in this population. Therefore, the objective of this study was to assess the impact of oral healt...

Introduction: Gunshot injuries to the oral maxillofacial region have serious aesthetic and functional consequences. Presentation of case: A 32-year-old male patient presented with a marginal mandibular resection owing to a gunshot wound. A clinical examination revealed destroyed crowns in teeth 12, 11, and 21; extraction in teeth 13, 22, 24, 31,...

Background: Improving patient satisfaction and quality of life is of great importance when considering the different prosthetic treatment options for patients with severely resorbed residual alveolar ridges. We aimed to evaluate and compare patients’ satisfaction when changing from fixed, removable, and/or conventional implant prostheses to basal i...

Objective: Congenitally missing maxillary lateral incisors present challenges to dentists in terms of treatment planning and can negatively affect aesthetics and function in patients. The aim of the present study was to determine the preferred treatment approach of dentists with different specialties. Materials and Methods: We carried out a descrip...

Purpose The aim of this study was to translate and validate an Arabic version of the 5-item Oral Health Impact Profile (OHIP). Methods A total of 320 subjects (aged 18 years and above) were consecutively recruited from dental clinics. The self-administered OHIP5-Ar was distributed and the data were collected and analyzed. The dimensionality of the...

Background: The assessment of oral heath related quality of life (OHRQoL) for complete denture wearers according to a participant's subjective perception may provide an indication of the adaptive capacity of the individual. The aim of this study was to compare and assess the validation of two quality of life measures, the Oral Health Impact Profil...

Objectives: To investigate the quality of communication between dentists and dental laboratory technicians in private dental laboratories in Khartoum State related to fabrication of removable partial dentures. Methods: This was a descriptive cross-sectional study, in which dental technicians were interviewed regarding the quality of instructions...

Background: Maxillary defects predispose patients to different undesirable effects. The aim of this study was to assess the quality of life (QoL) of patients with maxillary defects (acquired/congenital) wearing obturators. Methods: The study comprised 30 patients aged between 16 and 78 years. Interviews were conducted to collect information pert...

Statement of problem: Masticatory performance is an important and complex multifactorial process in clinical practice. An exploration of the relationships and effects of the associated factors is lacking. Purpose: This clinical survey compared masticatory efficiency (mixing index) with perceived masticatory ability (masticatory index) among comp...

This study investigated the effect of 1% and 5.25% of sodium hypochlorite (NaOCl) as spray and immersion solutions on the dimensional accuracy of an irreversible hydrocolloid impression material. Impressions of master models were taken using irreversible hydrocolloid impression material, which was then treated with NaOCl 1% or 5.25% solution, eithe...

Alginate impression (irreversible hydrocolloid) material is commonly used in dental practice because it is easy to mix, low in cost, and well tolerated by patients. The material is not dimensionally stable, however; thus, it is necessary to pour the impression immediately after the molding is accomplished, or within 60 minutes if the impression is...

Determination of the occlusal vertical dimension (OVD) is an integral part of complete dentures fabrication. Due to the lack of teeth, the clinician faces the challenge of how to accurately establish the OVD of the new denture. Therefore, the purpose of this review article was to present, discuss and critique the available methods used in determini...

Transitional denture is a removable dental prosthesis serving as an interim prosthesis to which artificial teeth will be added as natural teeth are lost and that will be replaced after postextraction tissue changes have occurred. Its role is important in protecting the socket against trauma from tongue, food, or the opposing teeth. The aim in this...

Introduction: The selection of artificial teeth is an important concern in complete denture construction. Many theories were developed to objectively select artificial teeth, to simplify the process of choice and to make it more suitable. Objectives: This study was conducted to evaluate the correlation between inverted maxillary central incisors fo...

This clinical report describes a comprehensive prosthodontic treatment of a young patient diagnosed with Odontogenic Myxoma. The treatment procedures included surgical removal of the tumor, immediate surgical plate, interim obturator, orthodontic treatment, and definitive obturator. The definitive prosthesis was cobalt-chromium removable partial de...

Objective: This study was conducted to evaluate the relationship between the distance measured from the distal outer of the eye to the parting line of the lips and the occlusal vertical dimension (OVD) measured by two methods. Methods: One hundred and fourteen dental students (76 males and 38 females) were recruited for this study with mean age...

Background: Clinicians commonly encounter the dilemma of which lateral occlusal scheme is the most suitable for a specific patient. It has been claimed that the presence of canine guidance reduces the inter-arch forces, and may therefore reduce normal tooth wear as well as parafunctional loads.

This study aimed to assess self-reported chewing ability among a sample of Sudanese adults and to identify factors associated with impaired oral function. A total of 1,888 adults (≥16 years old) attending outpatient clinics in Khartoum State were included. Subjective chewing ability was assessed by interviewing participants on chewing complaints an...

Abstract: The aims of this study were to develop a Sudanese-Arabic version of the English-language Oral Health Impact Profile-14 (OHIP-14), assess the psychometric properties and performance of this new instrument, and then use it to investigate the impacts of selected oral disorders on oral health-related quality of life (OHRQoL). Sudanese adolesc...

A study was conducted to determine the degree of tooth loss, factors influencing tooth loss, and the extent of prosthodontic rehabilitation in Sudanese adults (≥ 16 years old) attending outpatient clinics in Khartoum State. Pearson and multivariate analyses were used to examine the relationships between tooth loss and specific characteristics deter...

Abstract: A study was conducted to determine the degree of tooth loss, factors influencing tooth loss, and the extent of prosthodontic rehabilitation in Sudanese adults (≥ 16 years old) attending outpatient clinics in Khartoum State. Pearson and multivariate analyses were used to examine the relationships between tooth loss and specific characteris...

We aimed to assess the oral health status and risk factors for dental caries and periodontal disease among Sudanese adults resident in Khartoum State. To date, this information was not available to health policy planners in Sudan. A descriptive population-based survey of Sudanese adults aged ≥ 16 years was conducted. After stratified sampling, 1,88...

Distribution of participants' characteristics, their association with and likelihood of having decay, ≥ 18 SUNT, tooth wear, and periodontal pockets ≥ 4 mm.

Background: The choice of the size of artificial teeth takes an important place in the removable prosthodontic treatment. However, the standards or proportions commonly used as a guide have been developed mainly on Caucasian populations. Objectives: to investigate the relationship between intercanthal distance and the anterior maxillary teeth size...

A new differential medium, CHROMagar Candida, for the isolation of clinically important yeasts was investigated to determine its usefulness in facilitating the study of oral yeasts. The recovery of yeasts on the medium was not significantly different from the recovery on Sabouraud dextrose agar. The identities of 450 green colonies on CHROMagar Can...