Crown-formation time in Neandertal anterior teeth revisited

SummaryThe addition of small amounts of extrinsic thromboplastin or of thrombin to blood in vitro accelerated coagulation more frequently and to a greater extent when determined by the flowing time test than when measured by the silicone clotting time, or by the blood or plasma heparin tolerance tests. Similar results were obtained when intrinsic thromboplastin formation was stimulated by contact with glass. However there was little or no acceleration of the flowing clotting time of plasma obtained from aliquots of the thromboplastin-containing blood. These results indicate that the flowing clotting time (thrombus formation time) of whole blcod is a more reliable test of hypercoagulability than previously described blood or plasma clotting time tests.

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Efficiency of 3% Non-epinephrine Mepivacaine Application During Intraligamentary Anesthesia With Positive and Negative Aspiration in Pain Sensitivity to Electric Current of Young Subject`s Upper Anterior Teeth Pulp:

Journal of Oral & Dental Health ◽

10.33140/jodh/01/01/00006 ◽

2017 ◽

Vol 1 (1) ◽

Keyword(s):

Pain Sensitivity ◽

Pain Threshold ◽

Young Subject ◽

Reference Level ◽

Maximum Effect ◽

Anterior Teeth ◽

Randomized Controlled Studies ◽

Group Methods ◽

Peak Increase ◽

Infiltration Anesthesia

Background: Separation methods of local anesthesia to diffuse and vascular must significantly affect the clinical effect of adrenaline containing local anesthetic (mepivacaine). The aim of this prospective, randomized, controlled studies µAde was to compare the degree of anesthesia of intact upper lateral incisor the cartridge ¼ 3% mepivacain without epinephrine in the group after the infiltration and after intraligamentary anesthesia (ILA) in the experimental group. Methods: Anesthesia performed computer syringe Sleeper One 86 subjects aged 20-23 years. In all cases, aspiration was performed. With pulp tester IVN-01 measured the pain threshold incisors and canines in microamperes during the anesthetic effect. Results: Reference level of all researched teeth (86 subjects) was ranged from 1 to 10 µA. Uniform pain threshold increase to 95 (±20) µA by 5 min. watched during infiltration anesthesia then this value gradually descended to reference level (by 20 min.). Peak single increase of pain threshold to 55 (±8,9) µA occurred immediately after 1st minute of ILA, then this value subsequently drops to reference level (10 µA) by 20 minutes. Difference between groups of infiltration and intraligamentary anesthesia (ILA+ red) and (ILA – green) presented on Chart 6. Conclusions: Infiltration anesthesia with mepivacaine without epinephrine smoothly diffusely increased the pain threshold of the front teeth, reaching a significant, maximum effect by 5 minutes. Intraligamentary injection immediately after administration created a peak increase in pain sensitivity at a lower level, almost without the participation of the diffuse component.

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Comparision of two fluoride varnishes for controlling white spot lesions. Randomized clinical trial

REVISTA ODONTOLOGÍA PEDIÁTRICA ◽

10.33738/spo.v16i1.13 ◽

2017 ◽

Vol 16 (1) ◽

Author(s):

Jesús Alberto Luengo - Fereira

Keyword(s):

Clinical Trial ◽

Randomized Clinical Trial ◽

White Spot ◽

Controlled Clinical Trial ◽

White Spot Lesions ◽

Randomized Controlled Clinical Trial ◽

Chi Square ◽

Randomized Controlled ◽

Anterior Teeth ◽

The Mean

Objective: To compare two fluorinated varnishes for the control of white spot lesions.Material and Methods: A randomized controlled clinical trial was conducted. A total of 103 active whitespot lesions on permanent upper anterior teeth from 24 patients, aged 7 to 9 years were randomly assigned totwo groups, G1: Duraphat® (n=52) and G2: DuraShield® (n=51). Weekly applications were perform for fourconsecutive weeks. Fifth week the dimension, regression and activity of the lesions were evaluated. Student’sT test, Wilcoxon Ranks and Chi square were used at 5% significance. Results: At the end of the study, the lesion reduction was observed in 69.7%, finding significant differences(p<0.05) in the mean of the initial and final dimensions in general (2.74 mm to 1.91 mm) and in each group, G1(2.84 mm to 2.03 mm), G2 (2.64 mm to 1.78 mm). In the activity of the lesions, it was found in the G1, 12 active and6 inactive lesions; while in G2, there were 14 active and 29 inactive; these differences were significant (p<0.05). Conclusions: The two evaluated products showed similar clinical efficacy in the remineralization of activewhite spot lesions after 4 weeks of therapy.

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THE IMPACT OF ANTERIOR TEETH ALIGNMENT ON THE COLLECTIVITY PUPILS PERCEPTION

10.15303/rjeap.2017.si1.a27 ◽

2017 ◽

Author(s):

Cristina Nicolae ◽

Gheorghe Raftu

Keyword(s):

Anterior Teeth ◽

The Impact

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Ore Occurrence of Potassium-Uranium Rock Association: Mineralogy, Geochemistry, Formation Time (the Ukrainian Shield)

Mineralogical Journal ◽

10.15407/mineraljournal.37.04.106 ◽

2015 ◽

Vol 37 (4) ◽

pp. 106-122 ◽

Cited By ~ 2

Author(s):

S. Bondarenko ◽

L. Stepanyuk ◽

Z. Karly ◽

V. Syomka ◽

N. Donskoy ◽

...

Keyword(s):

Formation Time ◽

Ukrainian Shield ◽

Rock Association

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Cirurgia de aumento de coroa clínica e confecção de facetas diretas em resina composta orientadas por mock-up.

Full Dentistry in Science ◽

10.24077/2020;1245-cit2433 ◽

2020 ◽

Vol 12 (45) ◽

pp. 24-33

Author(s):

Fábio Shiniti Mizutani ◽

Atila de Freitas ◽

Adriano Sapata ◽

Claudio Sato

Keyword(s):

Case Report ◽

Composite Resin ◽

Treatment Plan ◽

Diagnostic Information ◽

Good Treatment ◽

Restorative Dentistry ◽

Laboratory Technician ◽

Crown Length ◽

Anterior Teeth ◽

Anterior Posterior

Keeping in mind the final result is the basis of any type of treatment, especially those in which the morphology, size and proportion of the anterior teeth will be changed. This is where a good treatment plan based on a diagnostic wax-up tested with a mock-up and approved by the patient becomes crucial. This case report aims to exemplify how to transfer the diagnostic information to the patient’s mouth and direct it not only to the restorative dentistry, but also to the surgeon when performing the crown length. Diagnostic waxing was performed by the laboratory technician, obeying anterior posterior incisal and gingival criteria and curvatures, which were transported to an aesthetic guide through mock up to mark the surgical points. Then, surgery to increase the clinical crown with bone access and after healing, direct venners in composite resin also guided by waxing. In conclusion, a workflow can be established using the wax-up / mock-up that serves as a guide for the periodontist in the approach to surgical lengthening of the crown and for the rehabilitator who uses it to produce changes in the shape of dental dimensions .

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