The relationship between Angle type of occlusion and recorded Bennett angle values

Čimić, Samir; Šimunković, Sonja Kraljević; Ćatić, Amir

doi:10.1016/j.prosdent.2015.11.005

Cited by 11 publications

(11 citation statements)

References 32 publications

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“…Three incisal pin openings were tested: 2, 5, and 10 mm. Condylar element settings were kept constant using the following values: Bennett angle: 8°, SCI: 30°, IMLT: 0 mm, and 0° incisal table inclination (Fig D).…”

Section: Methodsmentioning

confidence: 99%

Accuracy of Dynamic Virtual Articulation: Trueness and Precision

Hsu

Driscoll

Romberg

et al. 2019

Journal of Prosthodontics

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Purpose To study the effects of altering condylar settings and pin openings on the trueness and precision of virtual articulators vs. mechanical articulators. Materials and Methods Maxillary and mandibular typodonts with fiducial markers were mounted on a mechanical Artex‐CR articulator, and the mandibular teeth were prepared to allow guidance solely by the posterior determinants of the articulator and the incisal table. The relationship of the mounted typodonts was preserved digitally by scanning using manufacturer transfer plate adaptors. On the mechanical articulator, pattern resin was allowed to set between the maxillary and mandibular occlusal surfaces (area #25‐30) at the endpoints of dynamic movements at 3 condylar inclinations (SCI): 10°, 30°, and 45°, n = 12/inclination, or at 3 incisal pin openings (2, 5, and 10 mm, n = 12/opening). All other articulator settings were kept constant. Resin specimens attached to the typodonts were scanned within 5 minutes of setting, then removed, and the articulated typodonts rescanned. Fixed dental prostheses (FDPs) #25‐30 were designed on the virtual articulator using identical parameters to the mechanical articulator. Dynamic virtual movements were used to sculpt the design, and a file of the design was saved. The files of both types of samples were aligned and overlaid. Interocclusal separation was measured in triplicate at the indentation created by the mesiolabioincisal point angle on the incisal edge of #8 and the mesiobucco‐occlusal point angle of #3. Trueness and precision of both types of articulators were calculated and compared using one‐way ANOVA, followed by the Tukey HSD test (α = 0.05). Results There was no statistically significant difference at altered pin openings in either trueness (F = 0.202, p = 0.37) or precision (F = 3.134, p = 0.09) for the majority of measurements. The only significant difference was in the precision between the 2 types of articulators at 5 mm incisal opening, and only at the anterior measurement point (F = 15.134, p = 0.0008); however, these differences were less than 100 μm. When the SCI was altered, there was no statistically significant difference (F = 3.624, p > 0.05) between the virtual and mechanical articulators in trueness for 5 of the 6 measurements obtained (F = 3.624, p = 0.07) or for all of the precision measurements (F = 3.529, p = 0.07). The one trueness measurement that was significantly different (F = 9.237, p = 0.006) occured at SCI of 10°, and it was less than 100 µm. Conclusions Dynamic movements on the virtual articulator were shown to be as true and precise as to the mechanical articulator. When there were deviations, these deviations were less than 100 µm and thus, these deviations may not be clinically relevant.

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Section: Methodsmentioning

confidence: 99%

Accuracy of Dynamic Virtual Articulation: Trueness and Precision

Hsu

Driscoll

Romberg

et al. 2019

Journal of Prosthodontics

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“…A review of the literature on the average values of condylar path inclination have showed large variations, which, as it can commonly be explained, arose from different study sample sizes, different measurement methods for the condylar inclination according to different referential planes ( 12 , 24 , 25 ). With respect to the measured average values of Bennett angle, probably the best study to compare is the study by a group of Croatian authors ( 14 ), who measured the average Bennett angle of 7.7° in their test group (Arcus Digma device used). It should be noted that the same angle was measured for subjects with Angle class I, but also other subjects with other Angle classes had the same average value of Bennett angle.…”

Section: Discussionmentioning

confidence: 99%

“…to the remaining part of the non-working condyle path during lateral mandibular movement (which is basically the value of Bennett angle). In general, fully adjustable articulator systems have the possibility of setting/programming the mentioned parameters necessary for as accurate as possible simulation of lateral movements in the articulator ( 14 – 17 ).…”

Section: Introductionmentioning

confidence: 99%

Comparison of Parameters for Programming Adjustable Dental Articulators by Using Wax Eccentric Records and Arcus Digma Device

Mage

Ćelić

Čimić

et al. 2019

Acta Stomatol Croat

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ObjectivesProgramming of joint mechanism/parameters (sagittal condylar inclination and Bennett angle) of adjustable dental articulators is a prerequisite for performing positions and movements of the mandible. The aim of the study was to test significant differences between the two methods (wax eccentric records and Arcus Digma device) of measuring these joint parameters by using three different dental articulators (SAM 3, Protar 7; and Artex CR).Materials and MethodsThirty asymptomatic younger (age 25.7 ± 2.9 years) subjects (dental medicine students) divided by gender, with normal occlusion (Angle class I) participated in the study. After taking anatomical impressions of both dental arches, master casts were made of hard dental plaster for each subject. The values of the left and right sagittal condylar inclination and Bennett angle by the two methods of wax eccentric protrusive and lateral records and Arcus Digma device were measured for the purpose of programming the mentioned joint parameters in three different articulator systems.ResultsThe average values of the measured parameters of sagittal condylar inclination and Bennett angle of wax eccentric records were higher (ranging from 5ºto 10º) in relation to the values measured by Arcus Digma device. Statistically significant differences found between the measured joint parameters (p <0.025) were influenced by the articulator system design and measurement methods (t-test for dependent samples and MANOVA).ConclusionThe use of Arcus Digma device should be considered reliable and valid for individualized programming of dental articulators, rather than the use of wax eccentric records.

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“…Cimić et al 9 conducted a study to determine the relationship between an Angle type of occlusion and recorded Bennett angle values. They used an ultrasound mandibular recording device with 6 degrees of freedom to record left and right unguided lateral movements.…”

Section: Search Strategymentioning

confidence: 99%

The Clinical Significance of Immediate Mandibular Lateral Translation: Critically Appraised Topic (CAT)

Preiskel

Goldstein

2021

Journal of Prosthodontics

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Purpose The purpose of this Critically Appraised Topic was to investigate the possible clinical relevance of recording the immediate mandibular lateral translation. Materials and Methods A literature search limited to Clinical trials, Randomized Controlled Trials, Systematic Reviews, Meta Analyses, and using the PICO headings revealed no citations. Using the key words dental, occlusion, immediate side shift, also received no citations. Expanding the search criteria to include Journal Articles revealed 17 citations. Using dental occlusion, Bennett movement, revealed 21 citations. Results The cited articles were reviewed for relevance and duplicates were eliminated. The resulting 10 English language in vivo studies pertinent to the question were included. Other articles were culled from the author's library and the reference list of the aforementioned articles. There is no evidence on the prevalence of IMLT in patients in need of occlusal rehabilitation. There is agreement that the recording of the IMLT is reference point and recording instrument dependent. There is agreement that IMLT is observable on some patients and is minimal in magnitude. There is no evidence of any adverse clinical events as a result of not including IMLT in a restorative occlusal scheme. Conclusions It is justifiable to question the necessity of attempting both to record immediate mandibular lateral translation on the average patient and reproduce it on an articulator.

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The relationship between Angle type of occlusion and recorded Bennett angle values

Cited by 11 publications

References 32 publications

Accuracy of Dynamic Virtual Articulation: Trueness and Precision

Accuracy of Dynamic Virtual Articulation: Trueness and Precision

Comparison of Parameters for Programming Adjustable Dental Articulators by Using Wax Eccentric Records and Arcus Digma Device

The Clinical Significance of Immediate Mandibular Lateral Translation: Critically Appraised Topic (CAT)

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