No abstract available.
Transportation*

OBJECTIVES: The present study aimed to evaluate the shaping ability of 2 thermally treated nickel-titanium reciprocating systems in simulated curved canals. MATERIALS AND METHODS: Forty simulated canals were prepared to apical size 25 using Reciproc Blue R25 (VDW) and WaveOne Gold Primary (Dentsply Sirona) instruments. Standard pre- and post-preparation images were taken and superimposed. The removal of resin material was measured at 5 standard points: the canal orifice, halfway between the canal orifice and the beginning of the curve, the beginning of the curve, the apex of the curve, and the end-point of the simulated canal. The data were analysed using the independent sample t-test with a 5% significance threshold. RESULTS: The canals in which Reciproc Blue R25 was used showed a significantly greater widening than those in which WaveOne Gold was used at 4 of the 5 measurement points (p < 0.05). The Reciproc Blue R25 instrument removed significantly more resin from the inner aspect of the curve at 2 of the 5 points and similar amounts at the remaining 3 points. At the 2 apical points, there was no significant difference between the Reciproc Blue R25 and WaveOne Gold Primary instruments. CONCLUSION: Both instruments respected the original canal anatomy; however, WaveOne Gold resulted in a more conservative shape with less transportation.
Transportation

Transport for pediatric patients from one department to another ones in the same hospital or from one hospital to another must be sure of their safety and during the transportation, the patients’ situation were followed up and treated appropriately. The patient needs to move to a better place that includes care condition and treatment or where the explorative tests can be done to server for diagnosis and treatment
Pediatrics, Transportation

No abstract available.
Aircraft* ; Transportation*

There are increasing usage of Nickel-Titanium rotary files in modern clinical endodontic treatment because it is effective and faster than hand filing due to reduced step. This study was conducted to evaluate the effect of canal preparations using 3 different rotary Nickel-Titanium files that has different cross sectional shape and taper on the maintenance of canal curvature. Simulated resin block were instrumented with Profile(Dentsply, USA), GT rotary files(Dentsply, USA), Hero 642(Micro-Mega, France), and Pro-Taper(Dentsply, USA). The image of Pre-instrumentation and Post-instrumentation were acquired using digital camera and overspreaded in the computer. Then the total differences of canal diameter, deviation at the outer portion of curvature, deviation at the inner portion of curvature, movement of center of the canal and the centering ratio at the pre-determined level from the apex were measured. Results were statistically analyzed by means of ANOVA, followed by Scheffe test at a significance level of 0.05. The results were as follows; 1. Deviation at the outer portion of curvature, deviation at the inner portion of curvature were showed largest in Pro-Taper, so also did in the total differences of canal diameter(p<0.05). 2. All the groups showed movements of center. Profile combined with GT rotary files and Hero 642 has no difference but Pro-Taper showed the most deviation(p<0.05). 3. At the 1, 2, 3mm level from the apex movements of center directed toward the outer portion of curvature, but in 4, 5 mm level directed toward the inner portion of curvature(p<0.05). As a results of this study, it could be concluded that combined use of other Nickel-Titanium rotary files is strongly recommended when use Pro-Taper file because it could be remove too much canal structure and also made more deviation of canal curvature than others.
Hand ; Transportation

No abstract available.
Aircraft* ; Emergencies* ; Transportation*

Introduction: The mode and speed of transportation to the Accident and Emergency Department (AED) of hospitals is very important for critically ill patients. This study looked at the mode of transportation to the AED at the Raja Isteri Pengiran Anak Saleha (RIPAS) Hospital. Materials and Methods: Three different time periods: Period A from 15th May to 31st May 2004, (17 days, n=2,170 without prioritising), Period B from 1st January 2004 to 31st July 2006 (31 months, n=235 dead on arrival and resuscitation cases), and Period C from 20th to 26th November 2006 (7 days, all Priority Cases 1 to 3) were reviewed. Data on mode of transportation and triage categories were extracted from the ambulance response sheets. Results: During Period A, the main mode of transportation to the AED was private vehicles (90.7%) followed by ambulance (7.9%), and other transportation (1.4%). During study Period B, the main mode of transportation was also private transports (50.2%) followed closely by ambulance (48.5%) and other transportation (1.3%). During Period C, Priority 1 cases (life-threatening conditions, n=7(, most were transported with private transport (71.4%) followed by ambulance (28.6%); Priority 2 (n=232) cases, majority were transported with private transport (89.2%), followed by ambulance (10.3%), and one case used police transportation; and in Priority 3 cases (non-life threatening conditions, n=1,010), almost all were transported with private transport (98.7%), followed by police (0.9%) and ambulance (0.4%) respectively. Conclusion: Utilisation of designated emergency transportation is low especially for the moderate to seriously ill (Priority 1 and 2) patients when compared to other well developed countries. More needs to be done to improve the usage of emergency transportations especially for the seriously ill cases.
Emergencies ; Transportation ; Resource Allocation

No abstract available.
Disasters* ; Humans ; Transportation*

OBJECTIVES: Glide path preparation is recommended to reduce torsional failure of nickel-titanium (NiTi) rotary instruments and to prevent root canal transportation. This study evaluated whether the repetitive insertions of G-files to the working length maintain the apical size as well as provide sufficient lumen as a glide path for subsequent instrumentation. MATERIALS AND METHODS: The G-file system (Micro-Mega) composed of G1 and G2 files for glide path preparation was used with the J-shaped, simulated resin canals. After inserting a G1 file twice, a G2 file was inserted to the working length 1, 4, 7, or 10 times for four each experimental group, respectively (n = 10). Then the canals were cleaned by copious irrigation, and lubricated with a separating gel medium. Canal replicas were made using silicone impression material, and the diameter of the replicas was measured at working length (D0) and 1 mm level (D1) under a scanning electron microscope. Data was analysed by one-way ANOVA and post-hoc tests (p = 0.05). RESULTS: The diameter at D0 level did not show any significant difference between the 1, 2, 4, and 10 times of repetitive pecking insertions of G2 files at working length. However, 10 times of pecking motion with G2 file resulted in significantly larger canal diameter at D1 (p < 0.05). CONCLUSIONS: Under the limitations of this study, the repetitive insertion of a G2 file up to 10 times at working length created an adequate lumen for subsequent apical shaping with other rotary files bigger than International Organization for Standardization (ISO) size 20, without apical transportation at D0 level.
Dental Pulp Cavity ; Silicones ; Transportation

OBJECTIVES: Glide path preparation is recommended to reduce torsional failure of nickel-titanium (NiTi) rotary instruments and to prevent root canal transportation. This study evaluated whether the repetitive insertions of G-files to the working length maintain the apical size as well as provide sufficient lumen as a glide path for subsequent instrumentation. MATERIALS AND METHODS: The G-file system (Micro-Mega) composed of G1 and G2 files for glide path preparation was used with the J-shaped, simulated resin canals. After inserting a G1 file twice, a G2 file was inserted to the working length 1, 4, 7, or 10 times for four each experimental group, respectively (n = 10). Then the canals were cleaned by copious irrigation, and lubricated with a separating gel medium. Canal replicas were made using silicone impression material, and the diameter of the replicas was measured at working length (D0) and 1 mm level (D1) under a scanning electron microscope. Data was analysed by one-way ANOVA and post-hoc tests (p = 0.05). RESULTS: The diameter at D0 level did not show any significant difference between the 1, 2, 4, and 10 times of repetitive pecking insertions of G2 files at working length. However, 10 times of pecking motion with G2 file resulted in significantly larger canal diameter at D1 (p < 0.05). CONCLUSIONS: Under the limitations of this study, the repetitive insertion of a G2 file up to 10 times at working length created an adequate lumen for subsequent apical shaping with other rotary files bigger than International Organization for Standardization (ISO) size 20, without apical transportation at D0 level.
Dental Pulp Cavity ; Silicones ; Transportation