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Effectiveness Of Cetylpyridinium Chloride, Chlorhexidine Gluconate, Chlorine Dioxide, And Essential Oils Against F. Nucleatum, P. Gingivalis, S. Mutans And S. Sobrinus---A Biofilm Approach, Kristafer Lee Adkins
Effectiveness Of Cetylpyridinium Chloride, Chlorhexidine Gluconate, Chlorine Dioxide, And Essential Oils Against F. Nucleatum, P. Gingivalis, S. Mutans And S. Sobrinus---A Biofilm Approach, Kristafer Lee Adkins
Graduate Theses, Dissertations, and Problem Reports
Results of evaluating chemotherapeutic effectiveness have focused on planktonic, two-dimensional bacterial existence. Biofilms exist as three-dimensional structures which shelter bacteria deep within. Current research is needed to evaluate the effectiveness of various chemotherapeutics against bacteria residing inside of a biofilm. In order to do so, this study evaluated the effectiveness of four common chemotherapeutics (cetylpyridinium chloride, chlorhexidine gluconate, chlorine dioxide, and essential oils) against four bacteria (S. mutans, S. sobrinus, F. nucleatum and P. gingivalis) in both planktonic and biofilm modeled culture media. Data was obtained through the measurement of zones of inhibition (ZOI) surrounding test discs placed on experimental …
The Effects On The Antimicrobial Properties Of Hoshino's Triple Antibiotic Paste When Chlorhexidine Gluconate (0.12%) Is Substituted For The Propylene Glycol And Macrogol Ointment Mixture, Spencer R. Stiles
Graduate Theses, Dissertations, and Problem Reports
The purpose of this in vitro agar-diffusion study was to evaluate the effect on the antimicrobial efficacy of Hoshino's triple antibiotic paste when 0.12% chlorhexidine gluconate is substituted for the traditional propylene glycol and macrogol ointment carrier solution. Ciprofloxacin (200 mg), metronidazole (500 mg), and minocycline (100 mg), were mixed with either chlorhexidine or a 1:1 combination of propylene glycol and macrogol ointment. Seven microorganisms, including: E. coli, P. aeruginosa, S. aureus, E. faecalis, S. sanguis, F. nucleatum, and C. albicans, were incubated and plated onto triplicate blood agar plates. Two blank paper discs were positioned onto each agar plate, …
The Effect Of Cannula Design Upon Apically Extruded Sodium Hypochlorite During Endodontic Therapy, Gavin L. Criser
The Effect Of Cannula Design Upon Apically Extruded Sodium Hypochlorite During Endodontic Therapy, Gavin L. Criser
Graduate Theses, Dissertations, and Problem Reports
This in vitro study investigates the effect of cannula design on the amount of apically extruded sodium hypochlorite during non surgical root canal therapy. Ten human, extracted, single canal teeth were decoronated and instrumented and randomly assigned to two different treatment groups BO (blown out apices) and NBO (non-blown out apices). Three different cannula designs (Max-i-Probe, Pro-Rinse, Monoject) were compared in respect to the amount of extruded root canal irrigant yielded beyond the root apex. The results of this study support the conclusion that safe ended, side vented cannula design reduces the possibility of extruding sodium hypochlorite beyond the root …
Correlation Between Flexural Strength And Denture Base Acrylic Thickness Overlaying Implant Stud Attachments, Khaled N. Alawadhi
Correlation Between Flexural Strength And Denture Base Acrylic Thickness Overlaying Implant Stud Attachments, Khaled N. Alawadhi
Graduate Theses, Dissertations, and Problem Reports
Objectives. To investigate the effect of acrylic resin thickness and the stud attachment housings on the maximum breaking load, flexural strength and flexural modulus of denture base acrylic resins overlying implant overdenture attachments.;Methods. Fifty-two rectangular specimens were fabricated from high impact denture acrylic resin (Lucitone 199). Forty specimens contain 2.00 mm height Locator attachment titanium denture caps with black processing males, 12 specimens did not include the denture cap. All specimens were fabricated according to ANSI/ADA SPECIFICATION NO. 12-2002 for testing denture base resin with constant measurements of 64 mm in length, 10 mm in width, and variable testing thickness. …
Treatment Effects Of The Forsus Fatigue Resistant Device: A Cephalometric Investigation, Dean Heinrichs
Treatment Effects Of The Forsus Fatigue Resistant Device: A Cephalometric Investigation, Dean Heinrichs
Graduate Theses, Dissertations, and Problem Reports
Objectives. To evaluate the correction obtained from the Forsus Fatigue Resistant (FRD) device and orthodontic appliances compared to an untreated control group. Methods. Twenty four patients were treated with the Forsus FRD and fixed orthodontic appliances and were compared to twenty two untreated control patients who were matched in age, sex and craniofacial morphology. Lateral Cephalograms were taken before treatment (T1) and after Forsus FRD and removal of orthodontic appliances (T2). Results. Statistically significant differences were found for 12 of the 29 variables measured. Significant differences were found at Co-Gn minus Co-Apt., Wits, Is-OLp, Ii-OLp, overjet, Mi-OLp, Molar relationship, Overbite, …
The Stability Of The Wala Ridge As A Landmark For Determining Dental Arch Form, Kolin E. Weaver
The Stability Of The Wala Ridge As A Landmark For Determining Dental Arch Form, Kolin E. Weaver
Graduate Theses, Dissertations, and Problem Reports
Objectives. To evaluate changes to the WALA Ridge when subjected to orthodontic treatment using customized WALA Ridge archwires and preformed archwires, and ascertain trends within the United States amongst practicing orthodontists regarding arch form selection. Methods. 10 control subjects, 20 customized archwire subjects, and 20 preformed archwire subjects were compared using pre and post treatment mandibular casts for the experimental groups and two timepoint mandibular casts with two years between collection for the control group. Dental and Dentoalveolar changes were then measured from T1 to T2 for each of the groups. Furthermore, an electronic survey was distributed to all active …
A Proposed Method For Evaluation Of Morphological Changes In The Condyle And Glenoid Fossa By Cone Beam Computed Tomography, Michael R. Munn
A Proposed Method For Evaluation Of Morphological Changes In The Condyle And Glenoid Fossa By Cone Beam Computed Tomography, Michael R. Munn
Graduate Theses, Dissertations, and Problem Reports
The difficulty with three-dimensional analyses remains with the myriad of data that is possible to derive from a volume. The goal of this study is to report 3D changes in the temporomandibular joint in a reliable and quantifiable way. The approach included plotting specific referents on the mandibular condyle and tracking them in magnitude (mm) and direction (°) on a reference plane after superimposing the cone beams three-dimensionally on the inferior alveolar nerve canal and the lower contour of the third molar tooth germ. Two sets of measurements were compared for reliability and each measurement showed varied correlation. Linear measurements …
The Influence Of Heat Production Relative To Drill Wear During Osteotomy Preparation By Different Implant Drill Systems: A Comparison Study Between Ceramic And Conventional Implant Drill Systems, Waleed Alyassin
Graduate Theses, Dissertations, and Problem Reports
Repeated use of implant drills progressively increases their wear and decreases their efficiency, thus producing more frictional heat. Multiple factors have been linked to heat production during surgery including drill sharpness. The purpose of this research is to focus on the heat generated by an implant drill and how the wear factor and the material of the drill effect the heat generated by that drill when drilling through bone.;Two implant drill Systems were evaluated in vitro using bovine back rib bones. Two implant drill system were used. System A was stainless steel surgical drills sizes 2.3, 2.8 and 3.4 mmD …
The Influence Of Anxiety, Depression, And Negative Affect On Recall Of Dental Pain, Brandon N. Kyle
The Influence Of Anxiety, Depression, And Negative Affect On Recall Of Dental Pain, Brandon N. Kyle
Graduate Theses, Dissertations, and Problem Reports
Research suggests mood can influence recall of emotionally-relevant information. Yet, despite multiple studies examining the association of anxiety and exaggerated prediction and recall of dental pain, the influence of other moods on prediction and recall of dental pain remains poorly investigated. Further, the potential moderation and mediation effects for dental fear, fear of pain, and mood state have not been properly researched. The present study investigated variables associated with predicted pain (pain expected during the dental procedure) and recalled pain in oral surgery patients. Data were provided by a sample of 157 patients undergoing tooth extraction under local anesthetic. Patients …