Mohammed Abdullah Alshehri

• BDS, AEGD, SSC-ARD, SF-DI, FITI
• Consultant at King Saud University

Introduction Infection control procedures are implemented in dental clinics to reduce the risk of cross-contamination; saliva, blood, or airborne droplets containing infective agents are example of direct contamination, while indirect exposure via contact with contaminated surfaces and dental equipments such as dental chair, tray, faucet, air syrin...

Smart-card technology is believed to help healthcare industries in several ways, since it minimizes risks and medical errors, enables accurate patient identification, reduces administrative costs, improves efficiency, and facilitates prompt delivery of care to patients. The present study aims to highlight the adoption of a newly designed dental sma...

Dental fluorosis is a severe dental extremity due to excess fluoride intake during enamel formation, resulting in color abnormalities and severe tooth defects on its surface. This dental condition leads to abnormal appearance ranging from mild white to dark brown, affecting the esthetic characteristics and personality of the patient that eventually...

A key parameter differentiating the optical properties that influence the success of dental aesthetic restorations is opalescence. Opalescence enhances the natural aspect of several ceramic systems, solves aesthetic problems in relation to value and translucency, thereby resulting in unnoticeable restorations. Reproduction of opalescence in ceramic...

Background: The rapid growth of social media in recent years has highlighted uses beyond their original purposes, particularly in education. Twitter is a free, open access social network with high potential to enhance interactive learning. The use of Twitter in dental education has been far less investigated; therefore, the objective of this syste...

The endodontic point containing ultrasonic deformable material is a filler for root canal therapy that decreases in viscosity when subjected to ultrasonic waves. Once the point is inserted into a prepared tooth space, such as a prepared and cleaned root canal, the point is subjected to ultrasonic waves. The ultrasonic waves cause the viscosity of t...

Abutments are used in dentistry to attach dental crowns to dental implant. Currently, zirconia custom abutment is the one which is mostly used in restorations, since it offers several advantages, especially better esthetics and prevention from infection. Several innovations are done in the implant designs and procedures to achieve better esthetics....

Objective To compare the translucency and masking of zirconia-reinforced lithium silicate with lithium disilicate glass-ceramic and hybrid composite. Materials and methods One hundred and twenty disc-shaped specimens were fabricated using Enamic, Celtra Duo, E.max, and Suprinity. Twelve groups were prepared according to material type and thickness...

Dental implants with surface-porous designs have been recently developed. Clinically, peri-implant bone grafting is expected to promote early osseointegration and bone ingrowth when applied with surface-porous dental implants in challenging conditions. The aim of this study was to comparatively analyze peri-implant bone healing around solid implant...

This invention is related to a tooth canal filler used for filling tooth root canals after removing the nerve and preparing the canal for a final root filling .

Objectives: To assess the knowledge levels of dental hygienists in Saudi Arabia regarding the association between systemic and oral disease in addition to evaluating their attitude about integrating this knowledge into clinical practice. Methods: This was a cross-sectional survey using a questionnaire of 102 items among 192 randomly selected dent...

Aim: The aim of this in vitro study was to assess the antimicrobial efficacy of materials (gutta percha [GP], polytetrafluoroethylene [PTFE] tape, and vinyl polysiloxane [VP]) used for sealing the implant abutment screw hole (IASH). Methods: Sixty implants with a Morse cone connection were used. The implants were randomly divided into 3 groups (...

Key Clinical Message This article reports the oral manifestations of an unusual presentation of Marfan syndrome (MFS) and provides an evidence to the importance of recognizing the oral features in confirming the diagnosis of MFS. Dentists have a vital role in confirming the diagnosis of developmental disorders that involve the craniofacial compendi...

Background: A variety of systemic factors have been associated with peri-implant diseases. Objective: The aim of the present comprehensive review was to assess current literature regarding the systemic factors associated with the etiology of peri-implant diseases. Data source: Databases were searched till January 2017 using different combinations...

Purpose: The aim of this review was to assess the effect of implant shape (tapered vs cylindrical) on the survival of dental implants placed in the posterior maxilla. Methods: Databases were searched from 1977 up to and including February 2015 using various key words. Only original clinical studies were included. Experimental studies, letters to...

Objectives: It is hypothesized that soccer players with periodontal disease exhibit raised serum creatine kinase (CK) levels as compared to those without periodontal disease. We assessed the clinical gingival status and serum CK levels among young soccer players. Materials and Methods: Demographic data were collected through a structured questionna...

Objective: The objective of this study was to compare the regulations and clinical requirements of the endodontic board certifications and master's degrees in the Kingdom of Saudi Arabia (KSA) and United States of America (USA). Materials and Methods: This study was performed in the year 2012. Documents from the American Board of Endodontics (ABE)...

Background: The behavior of salivary myoepithelial cells (MEC) during chronic irradiation exposure is unknown. This study aimed to investigate the response of MEC to prolonged radiation exposure. Materials and methods: 16 rabbits and four controls were irradiated with either 10 Gy, 20 Gy, 30 Gy or 40 Gy (Gray units) of direct axial beam radiatio...

Objective: The aim of the present short-term follow-up study was to assess the effect of scaling and root planing (SRP) with and without adjunct use of an essential-oil-based mouthwash (EOBM) on whole salivary interleukin (IL)-1beta (β) levels in patients with periodontal disease. Methods: Ninety individuals with periodontal disease were divided...

Objective: The aim was to assess the effect of scaling and root planing (SRP) with and without adjunct use of an essential-oil-based-mouthwash (EOBM) on whole salivary immunoglobulin G (IgG) levels in patients with periodontal inflammation. Methods: Fifty patients with periodontal inflammation were included. Treatment wise, these patients were r...

Background: Xerostomia is a common clinical problem, and different medications have been tried in its management. In the present study, routine dietary products are used to assess their effect on salivary flow. Aim: To assess the efficacy of yogurt and lemon juice on increase in salivation and its comparison with that of unstimulated saliva. Ma...

Objective: This study aimed to describe the current use and knowledge about fluoride toothpaste and children's oral hygiene habits among parents of Saudi children. Materials and methods: In this cross-sectional study, the parents of children aged 7-12 years who visited the undergraduate pediatric dental clinics at the College of Dentistry in Riy...

The aim of the present micro-computed tomography (Micro-CT) analysis was to compare the quality of obturation in the apical third of the root with the warm vertical compaction (WVC) and single matching taper sized cone (SMTSC) techniques. Mesial roots of 16 freshly extracted mandibular first molar teeth (with a total of 32 canals) were used. Canals...

Aim: The aim was to assess the effect of scaling and root planing (SRP) with and without adjunctive use of an essential-oil (EO)-based oral rinse in the treatment of periodontal inflammation in type-2 diabetic (T2D) patients. Methods: Sixty T2D patients were included. In Group 1 (n = 30), SRP was performed and patients were instructed to rinse t...

Objective: The aim of the present short-term follow-up study was to assess the effects of scaling and root planing (SRP) with or without adjunctive use of an essential-oil-based mouthwash in the treatment of periodontal inflammation in smokers. Methods: In total, 120 individuals were divided into 2 groups. In Group-1, 60 smokers with periodontal...

The aim of the present short-term follow-up study was to compare the effects of an essential oil (EO)-based oral rinse and chlorhexidine as adjuncts to scaling and root planing (SRP) in the treatment of periodontal inflammation. In Group-1, SRP was performed and participants were instructed to rinse with EO-based oral rinse; in Group-2, SRP was per...

Background: There is a dearth of studies regarding the influence of cigarette smoking on periodontal inflammatory conditions among patients with type 2 diabetes mellitus (T2DM). The aim of the present study was to assess periodontal inflammatory conditions among smokers and never-smokers with and without T2DM. Methods: One hundred individuals (50...

BACKGROUND: There is a dearth of studies regarding the influence of cigarette smoking on periodontal inflammatory conditions among patients with type 2 diabetes mellitus (T2DM). The aim of the present study was to assess periodontal inflammatory conditions among smokers and never-smokers with and without T2DM. METHODS: One hundred individuals (50 p...

Background: There is a dearth of studies regarding the influence of cigarette smoking on periodontal inflammatory conditions among patients with type 2 diabetes mellitus (T2DM). The aim of the present study was to assess periodontal inflammatory conditions among smokers and never-smokers with and without T2DM. Methods: One hundred individuals (50...

The present in vitro study sought to determine the effects of myrrh-containing solutions on common suture materials used in periodontal surgery. Three commonly used suture materials (silk, polyglactin 910, polytetrafluoroethylene) were immersed in four thermostatically controlled experimental media to simulate daily oral rinsing activity, namely —a...

Background: Whole salivary interleukin (IL)-1β and IL-6 in prediabetic smokers and never-smokers remains uninvestigated. The aim was to assess the periodontal status and whole salivary IL-1β and IL-6 levels among smokers and never-smokers with and without prediabetes (controls). Methods: Ninety-five individuals (45 patients with prediabetes and 50...

Background: Whole salivary interleukin (IL)-1β and IL-6 in prediabetic smokers and never-smokers remains uninvestigated. The aim was to assess the periodontal status and whole salivary IL-1β and IL-6 levels among smokers and never-smokers with and without prediabetes (controls). Methods: Ninety-five individuals (45 patients with prediabetes and 50...

The present in vitro study sought to determine the effects of myrrh-containing solutions on common suture materials used in periodontal surgery. Three commonly used suture materials (silk, polyglactin 910, polytetrafluoroethylene) were immersed in four thermostatically controlled experimental media to simulate daily oral rinsing activity, namely —a...

Nonsteroidal anti-inflammatory drugs are the most commonly used medications for pain control in dentistry. The reported adverse effects include gastrointestinal and cardiovascular events, alterations in renal function, and effects on blood pressure, hepatic injury, and platelet inhibition which can lead to increased bleeding. This case report descr...

Case Report A 26-year-old, otherwise healthy male has reported to the restorative clinic at Al-Farabi College, Riyadh for investigation and management of pain aff ecting the posterior left region of the maxilla. His history of chief complaint showed typical presentation of severe pain due to advanced buccal cervical carious lesion.

Dental obturators are used in the obturation of the prepared of root canals in teeth. The subject obturators are so constructed that they bind at a particular area into the canal, there by precluding possible distortion at the end of the canal and facilitate injection of sealing material. The obturator is used for centralizing and positioning of pl...

The present in vitro study sought to determine the possible effects of myrrh containing solutions on common suture materials used in the course of periodontal surgery. Three commonly used suture materials (silk, polyglactin 910, polytetrafluoroethylene) were immersed in four thermostatically controlled experimental media to simulate daily oral rins...

Objectives: Several suture materials are used oral surgical interventions Myrrh has been reported to be effective for treating various oral diseases. In this study, we tested the durability of selected suture materials when exposed to various concentrations of myrrh in media that simulated the fluids found in the oral cavity. Methods: Vicryl (pol...

Objective: Is to compare the ability of ProTaper retreatment files and novel canal retreatment method using only one Ni-Ti Rotary (Reciproc) instrument in reciprocating movement in removing Gutta-Percha from root canal. Method: 40 bi-rooted extracted human maxillary premolars with two buccal and palatal canals were prepared with Protaper rotary f...

This article reviews the various clinical applications of cone-beam computed tomography (CBCT). A literature search was conducted via PubMed for publications related to dental applications of CBCT published between January 1998 and June 15, 2010. The search revealed a total of 540 articles, 129 of which were clinically relevant and analyzed in deta...

Objective: The aim of this study was to investigate the knowledge and practices of oral hygiene methods among parents of children age 0 - 12 years old in Riyadh, Kingdom of Saudi Arabia (KSA). Method: A convenience sample of four hundred and sixty three male and female parents of children age 0 - 12 years old in Riyadh, Kingdom of Saudi Arabia....

Objective: To compare the efficiency of two obturation technique vertical compaction and single-matched, taper-sized cone technique. Method: Root canals in 40 extracted premolars were prepared up to F3 Protaper. 20 teeth with two canals anatomy and constant apical size and taper of the shaped canals were selected. They were randomly assigned for ro...

Objectives: The purpose of this study was to review the clinical applications of CBCT in deferent dental disciplines. Methods: A Pub Med search was conducted from 1 January 1998 to 15 July 2010. Cone-beam computerized tomography in dentistry was used as a keyword to widespread the search of CBCT imaging to different dental disciplines clinica...

_Root-canal treatment consistsof 3-D filling of the root-canal system with gutta-percha and sealer, with the goal of maximising the amount of solid core material and minimising the amount of sealer. 1 Be-fore this can be achieved, the root canal must be chemo-mechanically prepared to a sufficient shape and size in order to eradicate micro-organisms...

The aim of this study was to find out the knowledge and practices of oral hygiene methods among primary and secondary school teachers in Riyadh, Kingdom of Saudi Arabia (KSA). The study was carried out using a self-administered questionnaire. Four hundred and seventy teachers, male 236 (50.2%) and female 234 (48.8%) responded with a response rate o...