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Odontometry (0):
Recent article
Odontometry
Abstract
Researchers have conducted extensive studies regarding dentoalveolar factors that affect anterior dental esthetics; however, there is no consensus regarding laypeople's perspectives on these factors.
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PMID: 21628684
PDF is available here.
PDF is available here.
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Abstract
The presence of a diastema or diastemata between teeth is a common feature found in the anterior dentition. Many forms of therapy can be used for diastema closure. A carefully developed diagnosis and advanced planning allows the most appropriate treatment to be determined for each individual case to...
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PMID: 21473993
PDF is available here.
PDF is available here.
Abstract
The recent interest in sleep-related breathing disorders has re-opened the old debate as to whether there is a causal relationship between upper respiratory obstruction and abnormalities in dentofacial development.
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PMID: 21215380
PDF is available here.
PDF is available here.
Abstract
The goal of this study was to quantify the apicoincisal extent of the proximal contact area (PCA) between the eight maxillary anterior teeth. A total of 140 PCA sites and 160 crown lengths were measured in 20 healthy patients. The percentage ratio of PCA to clinical crown length was computed and def...
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PMID: 20814600
PDF is available here.
PDF is available here.
Journal of Endodontics (36)8 2010
Abstract
The average DMFFs were 0.261 mm, 0.376 mm, and 0.383 mm for the Root ZX (J. Morita, Kyoto, Japan), Raypex 5 (VDW, Munich, Germany), and Elements Apex Locator (SybronEndo, Anaheim, CA), respectively. The file tips determined by EALs were much closer to the major foramen in teeth with a "lateral major...
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PMID: 20647105
PDF is available here.
PDF is available here.
Journal of Endodontics (36)8 2010
Abstract
A better understanding of the canal curvatures is essential for successful endodontic treatment of three-rooted mandibular first molars.
Copyright 2010 American Association of Endodontists. Published by Elsevier Inc. All rights reserved....
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PMID: 20647093
PDF is available here.
PDF is available here.
Abstract
These results in 47,XXX females indicate an increase in root dentin development, at least in the mandible, which together with the data on crown formation reflects a continuous long-lasting effect of the X chromosome on dental development....
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PMID: 20568965
PDF is available here.
PDF is available here.
Abstract
The dimensions of the roots of the teeth are important in the assessment of orthodontic anchorage and to estimate the forces to be used during orthodontic tooth movement.
To investigate the relations between the lengths, widths and projected areas of the roots of the permanent teeth.
Intact, extract...
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PMID: 20575192
PDF is available here.
PDF is available here.
Abstract
With the lips at rest, older Brazilians display less of their upper central incisors and more of their lower central incisors than young Brazilians. Women show more of their upper incisors than men, while men display more of their lower central incisors than women....
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PMID: 20575196
PDF is available here.
PDF is available here.
Journal of Endodontics (36)5 2010
Abstract
CBCT axial images showed that both the palatal and distobuccal root have a Vertucci type II canal pattern, whereas the mesiobuccal root showed a Sert and Bayirli type XV canal configuration. CONCLUSION: This report describes and discusses the variation in canal morphology of maxillary first molar an...
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PMID: 20416446
PDF is available here.
PDF is available here.
Journal of Endodontics (36)5 2010
Abstract
The i-CAT CBCT unit accurately identified the presence or absence of the MB2 canal in 78.95% of samples. Statistical analysis showed that there was no significant difference in the ability of CBCT scanning to detect the MB2 canal when compared with the gold standard of clinical sectioning (p > 0.5)....
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PMID: 20416435
PDF is available here.
PDF is available here.
Abstract
This study aimed at evaluating measurements relative to the mesiodistal crown width and enamel thickness of maxillary first bicuspids. The sample consisted of 40 extracted sound bicuspids (20 right and 20 left), selected from white patients (mean age: 23.7 +/- 4.2 years), who were treated orthodonti...
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PMID: 20339715
PDF is available here.
PDF is available here.
Dental update (37)2 2010
Abstract
The first article in this series of two aims to outline the assessment of patients for whom a combined orthodontic-restorative approach would be beneficial. In particular, it will concentrate on the assessment of patients who have hypodontia and tooth size discrepancies. The importance of the aesthe...
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PMID: 20415006
PDF is available here.
PDF is available here.
Abstract
A mean overall ratio of 92.5 +/- 0.5% and anterior ratio of 79.0 +/- 0.5 were reported for Nigerian teeth. Tooth size ratios among gender was compared using the Student's t-test, there was no significant difference (P > 0.05). Nigerian tooth size ratio was compared with those of Caucasians as determ...
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PMID: 20839473
PDF is available here.
PDF is available here.
Angle Orthodontist (80)2 2010
Abstract
The Occlusal measurement technique for digital models was the best combination of accuracy, repeatability, and speed of measurement....
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PMID: 19905849
PDF is available here.
PDF is available here.
Journal of Endodontics (36)3 2010
Abstract
This knowledge can be used to clinically minimize the size of osteotomies required to locate P root apices during endodontic surgery.
Copyright (c) 2010 American Association of Endodontists. Published by Elsevier Inc. All rights reserved....
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PMID: 20171358
PDF is available here.
PDF is available here.
Abstract
Crown dimensions of the maxillary molars were measured in the koala (Phascolarctos cinereus). There were no significant differences in crown diameters between the first and second molars, however the fourth molars were reduced in all crown diameters. The third molar was smaller than the first or sec...
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PMID: 20560450
PDF is available here.
PDF is available here.
Journal of Oral Science (52)3 2010
Abstract
I and IV root canal configurations were observed in the samples, and different types of curvature were recorded for the root canals in all four classes. As deciduous molar teeth exhibit morphologic differences from permanent teeth, a thorough knowledge of the root canals in the former can improve th...
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PMID: 20881332
PDF is available here.
PDF is available here.
Journal of Oral Science (52)3 2010
Abstract
Variations in the dental anatomy are found in all teeth. Understanding root canal morphology is one of the most important steps in successful root canal treatment. Thus, during the diagnosis and treatment phases of maxillary molars, a clinician must be aware that anatomical variations exist. The pur...
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PMID: 20881346
PDF is available here.
PDF is available here.
Przeglad lekarski (67)4 2010
Abstract
A CT scan allows assessment of degree and extent of the resorption of lateral incisor roots adjacent to impacted maxillary canines. Age of patients is a significant factor which has an effect on occurrence of damage to incisor roots. Also the position of impacted canines has an effect on the process...
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PMID: 20687358
PDF is available here.
PDF is available here.
Abstract
Medicinski pregled (63)5-6 2010
Abstract
We measured the mesiodistal width of each tooth from the first molar on one side to the first molar on the other side, from the mesial contact point to the distal contact point with the greatest interproximal distance.
The obtained results for mesiodistal tooth width of the right and left side do no...
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PMID: 21186544
PDF is available here.
PDF is available here.
Angle Orthodontist (80)1 2010
Abstract
In vivo determination of tooth volumes from CBCT data is feasible. The measurements slightly deviate from the physical volumes within -4% to 7%. Smoothing operations reduce volume measurements. Currently, no requirements for accuracy of volumetric determinations of tooth volume have been established...
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PMID: 19852656
PDF is available here.
PDF is available here.
Abstract
The aim of the study was to determine the diet of a historical human population. Dental microwear and trace elements were analyzed. Although 38 individuals had been buried in the cemetery, only 13 of them were suitable for the analysis of trace elements and 17 skeletal remains for microwear analysis...
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PMID: 20954457
PDF is available here.
PDF is available here.
Pediatric Dentistry (32)2 2010
Abstract
Compared to normal case controls, children with nonsyndromic hypodontia are more likely to show taurodontism of the permanent first molar teeth whereas children with nonsyndromic supernumerary teeth are not....
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PMID: 20483017
PDF is available here.
PDF is available here.
Abstract
The Middle Awash Ardipithecus ramidus sample comprises over 145 teeth, including associated maxillary and mandibular sets. These help reveal the earliest stages of human evolution. Ar. ramidus lacks the postcanine megadontia of Australopithecus. Its molars have thinner enamel and are functionally le...
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PMID: 19810195
PDF is available here.
PDF is available here.
Abstract
Two hundred forty interdental papilla sites in 20 healthy patients were investigated. Interdental papilla heights of maxillary anterior teeth were measured from the gingival zenith, along with clinical crown lengths. Percentages of papilla height to crown length were computed and defined as papilla...
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PMID: 19639059
PDF is available here.
PDF is available here.
Angle Orthodontist (79)4 2009
Abstract
The tooth-size discrepancies could be better expressed in terms of both percentage and actual amount of millimeters required for correction. The ratios outside 2 SDs from the Bolton mean and the discrepancies requiring more than 2 mm of maxillary and/or mandibular corrections are recommendable as th...
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PMID: 19537863
PDF is available here.
PDF is available here.
Abstract
Various embrasure morphologies did not affect central papilla height in subjects with papilla recession. However, other factors may affect the central papilla height, and further study of these factors is necessary....
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PMID: 19587893
PDF is available here.
PDF is available here.
Abstract
We analyze craniodental nonmetric data using several different measures of biological distance, as well as a method for estimating group diversity using multidimensional scaling of distance estimates. Patterns of biological variation and population relationships were interpreted in temporal and geog...
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PMID: 19140183
PDF is available here.
PDF is available here.
Abstract
Our study revealed that the shift of values of metric features in teeth of FtM towards males was more frequent in the more sexually dimorphic BL diameters characterized by significantly greater width of the crown of five teeth: maxillary canine, first and second molars, as well as mandibular incisor...
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PMID: 18274888
PDF is available here.
PDF is available here.
Dental update (36)4 2009
Abstract
Taurodontism is the morpho-anatomical change in the shape of a tooth, which involves enlargement of the body of the tooth and shortening of the roots. It has been reported in permanent and deciduous teeth, in premolars and molars and associated with certain syndromes, particularly in those involving...
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PMID: 19518034
PDF is available here.
PDF is available here.
Angle Orthodontist (79)3 2009
Abstract
Each 10 degrees change in the maxillary incisor inclination results in a statistically significant average change in point A of 0.4 mm in the horizontal plane (P = .028). Each 10 degrees change in the mandibular incisor inclination results in a borderline statistically significant average change in...
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PMID: 19413385
PDF is available here.
PDF is available here.
Angle Orthodontist (79)3 2009
Abstract
Accurate prediction of treatment duration for orthodontic alignment of palatally impacted maxillary canines is difficult. However, the mesiodistal position of the canine may be a useful predictor of treatment duration....
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PMID: 19413390
PDF is available here.
PDF is available here.
Abstract
The mesiodistal widths of teeth and groups of teeth can be reliably and validly measured on virtual study models using the scanner and software developed for this purpose. Inaccuracy in the canine region may be overcome by using a smaller rotational angle during scanning....
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PMID: 19634463
PDF is available here.
PDF is available here.
Abstract
Guidelines for safe placement are as follows: the initial point for mini-implant placement is near the mucogingival line (2-4 mm from the CEJ) and less than a 45 degrees apical angulation to the long axis of tooth, with a mini-implant diameter of 1.4 to 1.8 mm and length of about 6 mm (bone contact)...
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PMID: 19409346
PDF is available here.
PDF is available here.
Abstract
When applied to subjects with malocclusion, the predictions indicate transverse deficiencies in the premolar region of Class I subjects and deficiencies in the anterior maxilla of Class II subjects. Predictions based on Pont's index, the Schwarz analysis, or the McNamara rule of thumb were biased an...
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PMID: 19409348
PDF is available here.
PDF is available here.
Abstract
The mean distance between the major foramen and the anatomical root apex was 0.69 mm; the mean distance was larger in posterior teeth (0.82 mm) and smaller in anterior teeth (0.39 mm). A wide range of anatomical apex to major foramen distances were observed in all tooth groups: the greatest distance...
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PMID: 19220517
PDF is available here.
PDF is available here.
Abstract
Distances between the file tip and the major apical foramen were not significantly different between the file systems and the two EALs. In cases treated with FlexMaster significantly larger distances between file tip and minor apical foramen were found compared to M(two) and ProTaper. No significant...
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PMID: 19220512
PDF is available here.
PDF is available here.
Abstract
Abstract
Abstract
Abstract
The main goal in comprehensive orthodontic treatment is to obtain optimal final occlusion, overbite and overjet. Tooth size discrepancies of the maxillary and mandibular arches is an important factor for achieving this goal. The aim of this study was to determine the relationship between the Bolton...
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PMID: 20179399
PDF is available here.
PDF is available here.
Canal-centring ability of three rotary file systems in simulated curved canals: a comparative study.
Abstract
ProFile did not change canal centricity in any point. RaCe kept centricity at HO, BC, AC and EP. M two changed canal centricity in points BC, AC and EP. M two group kept the centricity significantly less than the other two groups at BC (P = 0.004), AC (P = 0.015) and EP (P = 0.01). There was no sign...
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PMID: 20139559
PDF is available here.
PDF is available here.
Folia Primatologica (80)1 2009
Abstract
We report here field evidence for 2 dwarf lemur species at Tsinjoarivo, an eastern-central high-altitude rain forest: one, from a forest fragment, displaying coat and dental characteristics similar to C. sibreei (previously described only from museum specimens) and the other, from the continuous for...
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PMID: 19023214
PDF is available here.
PDF is available here.
Abstract
Success in endodontic treatment depends on various factors. One of the most important is appropriate preparation of the root canal system, in addition to keeping the periapical region intact as much as possible. This is achieved by determining the penetration depth of the instruments into the canal...
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PMID: 19722483
PDF is available here.
PDF is available here.
Abstract
Bilateral bi-rooted primary canines are a rare dental anomaly and the occurrence with a syndrome is even rarer. This dental anomaly has mostly occurred in African populations. This article reports a case of bi-rooted primary canines bilaterally located in both jaws of a 15-year-old Chinese boy who a...
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PMID: 20297700
PDF is available here.
PDF is available here.
Abstract
After loss of natural teeth, provision of prosthodontic services almost becomes necessity in the present day living. To provide effective mastication teeth have peculiar forms. To make it more efficient both functionally and biologically, they are arranged in particular geometric manner referred to...
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PMID: 21067044
PDF is available here.
PDF is available here.
Abstract
This case report presents a maxillary third molar with a C-shaped canal system. This is the first known description of a maxillary third molar with C-shaped anatomy. This unique pulp chamber morphology was observed under the operating microscope. Root canal treatment consisted of cleaning and shapin...
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PMID: 19626227
PDF is available here.
PDF is available here.
Abstract
We developed a new five-grade scoring plaque to better categorize MxPAR variation. Subsequently, we conducted a population analysis of MxPAR frequency in 749 dental casts of South African Indian, American Chinese, Alaskan Eskimo, Tohono O'odham (Papago), Akimel O'odham (Pima), Solomon Islander, Sout...
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PMID: 19953530
PDF is available here.
PDF is available here.
Abstract
In this study the prevalence of lingual eruption was 18.4%. Eighty-three point seven percent of the subjects had either equivalent space, mild space excess, or a space deficiency (not more than 3 mm). No relationship was found between groups and clinical outcomes (P>.05). Follow up of the main three...
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PMID: 19142253
PDF is available here.
PDF is available here.
Revista Medico-Chirurgicala (113)4 2009
Abstract
The aim of our study was to determine the impact of premature loss of temporary molars upon the longitudinal axis of the first permanent molar.
The study sample was formed by 94 orthopanthomografies of child patients with premature loss of lower temporary molars (first or second) after clinical erup...
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PMID: 20191909
PDF is available here.
PDF is available here.
Abstract
We used a systematized technique using DSJ 70 kV radiographic equipment with 8 mA and Insight intraoral film (E F speed; Eastman Kodak, Rochester, NY). The images obtained from the 66 radiographic studies were scanned. The program Image tool for Windows was used to measure: (a) distance from the can...
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PMID: 19601494
PDF is available here.
PDF is available here.
Operative Dentistry (34)3 2009
Abstract
The theory of abfraction suggests that tooth flexure arising from occlusal loads causes the formation and progression of abfraction lesions. The current study investigated whether reducing occlusal loading by adjusting the occlusion on a tooth during lateral excursive movements had any effect on the...
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PMID: 19544815
PDF is available here.
PDF is available here.
Abstract
The choice of surgical technique in the exposure of impacted central incisors has important implications in the success of the orthodontic treatment of impacted incisors, in the long term, in relation to periodontal support and to appearance....
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PMID: 19070757
PDF is available here.
PDF is available here.
Pediatric Dentistry (31)4 2009
Abstract
The Digital Signal Processing apex locator is useful and accurate for apex foramen location during root canal length measurement in primary molars....
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PMID: 19722441
PDF is available here.
PDF is available here.
Brazilian Dental Journal (20)1 2009
Abstract
The mandibular canine is usually considered a single-rooted tooth with a single root canal. However, two canals and more rarely two roots may also occur. This paper reports the case of a patient with bilateral mandibular canines with two roots and two root canals. The initial periapical radiographs...
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PMID: 19466238
PDF is available here.
PDF is available here.
Abstract
This study is designed as an in vivo study to evaluate the impression of the preflaring method on working length determination in curved canals.
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PMID: 19186660
PDF is available here.
PDF is available here.
Dental update (35)10 2008
Abstract
There is much controversy in the dental literature and among clinicians regarding the ideal length of preparation in endodontic treatment and how this should be determined. The differing opinions are summarized and the methods of length determination described, along with their advantages and disadv...
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PMID: 19192689
PDF is available here.
PDF is available here.