Knösel, Michael

[["dc.bibliographiccitation.firstpage","160"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Clinical Implant Dentistry and Related Research"],["dc.bibliographiccitation.lastpage","165"],["dc.bibliographiccitation.volume","15"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Mueller, Alois"],["dc.contributor.author","Decco, Oscar A."],["dc.contributor.author","Rau, Maria J."],["dc.contributor.author","Cura, Andrea C."],["dc.contributor.author","Ruscio, Mara L."],["dc.contributor.author","Knoesel, Michael"],["dc.date.accessioned","2018-11-07T09:26:31Z"],["dc.date.available","2018-11-07T09:26:31Z"],["dc.date.issued","2013"],["dc.description.abstract","Aim: The study aims to provide objective data for the displacement of titanium screw implants in trabecular bone specimens. One hundred Semados implants (Bego, Bremen, Germany) were inserted in bovine type IV bone specimens. All implants had a diameter of 3.75mm; 50 implants had a length of 8.5mm and 50 implants had a length of 15mm. Insertion torque was determined at intervals of 10, 20, and 30Ncm. Implants were loaded horizontally with 10, 20, and 30N for 2 seconds. An indicator strip was attached to the implant abutment to allow direct observation of implant movement relative to the bone surface. Horizontal displacement was assessed with an accuracy of measurement of 10 mu m. Seven implants got lost by visible loosening. Degree of displacement was subject to evaluation with all others. Those implants showed a mean displacement of 59 mu m for 10N (n=100), 173 mu m for 20N (n=99), and 211 mu m for 30N (n=93). The mean displacement of 15-mm implants (16, 37, 51 mu m) was significantly lower compared with 8.5-mm implants (103, 311, 396 mu m) corresponding to 10, 20, and 30N as lateral loads. Conclusions: Displacement of screw implants in trabecular bone can be detected and visualized using commercially available endoscopes with a high magnification. A lateral load of 20N indicates a mean displacement of over 100 mu m and therefore results in a critical displacement."],["dc.identifier.doi","10.1111/j.1708-8208.2011.00338.x"],["dc.identifier.isi","000317289700002"],["dc.identifier.pmid","21682842"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/30320"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","1523-0899"],["dc.title","Displacement of Dental Implants in Trabecular Bone under a Static Lateral Load in Fresh Bovine Bone"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","454"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","The Angle Orthodontist"],["dc.bibliographiccitation.lastpage","461"],["dc.bibliographiccitation.volume","79"],["dc.contributor.author","Knoesel, Michael"],["dc.contributor.author","Jung, Klaus"],["dc.contributor.author","Attin, Thomas"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Kubein-Meesenburg, Dietmar"],["dc.contributor.author","Gripp-Rudolph, Liliam"],["dc.contributor.author","Attin, Rengin"],["dc.date.accessioned","2018-11-07T08:30:05Z"],["dc.date.available","2018-11-07T08:30:05Z"],["dc.date.issued","2009"],["dc.description.abstract","Objective: To evaluate the significance of crown-root angles (CRAs) by testing the null hypothesis that there are no significant differences in deviations of third-order angles to axial inclination values between Angle Class II division 2 incisors and a neutral occlusion control sample. Materials and Methods: The study group comprised n(total) = 130 whites with either Angle Class II division 2 (n(1) = 62; group A) or neutral (n(2) = 68; control group B) occlusal relationships. Upper central incisor inclination (U1) was assessed with reference to the cephalometric lines NA and palatal plane (U1NA/deg, U1PP/deg). Craniofacial sagittal and vertical relations were classified using angles SNA, SNB, ANB, and NSL-PP. Third-order angles were derived from corresponding dental cast pairs using an incisor inclination gauge. Welch's two-sample t-tests (alpha-level:.05) were used to test the null hypothesis. Single linear regression was applied to determine third-order angle values as a function of axial inclination values (U1NA, U1PP) or sagittal craniofacial structures (ANB angle), separately for group A and B. Results: The discrepancy between axial inclination (U1NA, U1PP) and third-order angles is significantly different (P <.001) between groups A and B. Regression analysis revealed a simply moderate correlation between third-order measurements and axial inclinations or sagittal craniofacial structures. Conclusion: The hypothesis is rejected. The results of this study warn against the use of identical third-order angles irrespective of diminished CRAs typical for Angle Class II division 2 subjects. Routine CRA assessment may be considered in orthodontic treatment planning of Angle Class II division 2 cases. (Angle Orthod. 2009;79:454-461.)"],["dc.identifier.doi","10.2319/042508-234"],["dc.identifier.isi","000266052200008"],["dc.identifier.pmid","19413389"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/5785"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/16807"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","0003-3219"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","On the Interaction between Incisor Crown-Root Morphology and Third-Order Angulation"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","315"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","The Angle Orthodontist"],["dc.bibliographiccitation.lastpage","323"],["dc.bibliographiccitation.volume","86"],["dc.contributor.author","Knoesel, Michael"],["dc.contributor.author","Fendel, Christine"],["dc.contributor.author","Jung, Klaus"],["dc.contributor.author","Sandoval, Paulo"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.date.accessioned","2018-11-07T10:17:53Z"],["dc.date.available","2018-11-07T10:17:53Z"],["dc.date.issued","2016"],["dc.description.abstract","Objective: To test the null hypothesis of no significant difference between intraoral pressure characteristics in infants with cleft lip and palate (CLP) with or without presurgical orthopedic (PSO) plates (groups CLP and CLP-PSO), compared with noncleft infants. Materials and Methods: Intraoral atmospheric pressure assessments were performed on 17 subjects with preoperative CLP (m/f, 11/6; mean/SD, 4.76/0.92 months) and a matched control group (n = 24; m/f, 15/9; mean/SD, 4.88/0.9 months), for 200 seconds, simultaneously at the vestibulum (vestibular space [VS]) and at the palate (subpalatal space [SPS]), using a prepared pacifier connected to a digital manometer. Areas under the pressure curves (AUC), frequencies, durations, and magnitudes of swallowing peaks and pressure resting plateaus were compared between trial groups and locations (VS, SPS) using a two-factor analysis of variance for repeated measures, Kruskal-Wallis test, and Mann-Whitney U-test (alpha = .05). Results: The null hypothesis was rejected: Globally, there were statistically significant differences in intraoral pressure characteristics between groups CLP, CLP-PSO, and control (all P < .01), with significantly higher negative pressures (AUC) in the control subjects compared with those of CLP or CLP-PSO. There were significant effects by the location of pressure recordings (VS, SPS) and their interaction with all treatment groups. Differences between noncleft and CLP subjects were more pronounced in the VS than in the SPS. There was no significant effect by PSO. Conclusion: PSO does not improve deviated swallowing characteristics during suction in CLP infants."],["dc.identifier.doi","10.2319/021215-98.1"],["dc.identifier.isi","000371186300020"],["dc.identifier.pmid","25993249"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/41312"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","E H Angle Education Research Foundation, Inc"],["dc.relation.issn","1945-7103"],["dc.relation.issn","0003-3219"],["dc.title","Presurgical orthopedics by drink plates does not significantly normalize deglutition in infants with cleft lip and palate"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","697"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","The Angle Orthodontist"],["dc.bibliographiccitation.lastpage","705"],["dc.bibliographiccitation.volume","86"],["dc.contributor.author","Knoesel, Michael"],["dc.contributor.author","Nueser, Carolin"],["dc.contributor.author","Jung, Klaus"],["dc.contributor.author","Helms, Hans-Joachim"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Sandoval, Paulo"],["dc.date.accessioned","2018-11-07T10:09:52Z"],["dc.date.available","2018-11-07T10:09:52Z"],["dc.date.issued","2016"],["dc.description.abstract","Objective: To test the null hypothesis of no significant difference in terms of intraoral pressure curve characteristics assessed simultaneously at the subpalatal space (SPS) and the vestibular space (VS), during different oral postures, between four groups with either an Angle Class II/1 (II1), Angle Class II/2 (II2), anterior open bite (0) malocclusion, or a neutral occlusion control group (I). Materials and Methods: Intraoral pressure recordings were performed simultaneously in the VS and SPS of 69 consecutive subjects (n(II1) = 15; n(II2) = 17; n(O) = 17; n(I) = 20; mean age/standard deviation 18.43/6.60 years). Assessments included defined sections of open mouth posture (OMP, 30 seconds), anteriorly closed mouth condition (60 seconds), dynamics by a tongue-repositioning maneuver (TRM, 60 seconds), swallowing, and positive pressure generation (PP, 10 seconds). Interactions of malocclusion, compartment location, and posture on pressure curve characteristics were analyzed by Kruskal-Wallis and Mann-Whitney U-tests, adopting an alpha level of 5%. Results: Globally significant group differences were detected at the VS (plateau duration and median peak heights during TRM; area under pressure curve [AUC] during PP) and SPS (AUC during TRM and PP). Subjects with anteriorly nonopen dental configurations (groups I and 112) were able to keep negative pressure levels at the VS for longer time periods during TRM, compared to groups 0 and II1. Conclusions: The null hypothesis was rejected for mean VS plateau durations and peak heights and for SPS AUC. Negative pressures at the VS may stabilize outer soft tissues passively and may explain the dental arch form shaping effect by mimic muscles."],["dc.identifier.doi","10.2319/101615-699.1"],["dc.identifier.isi","000382415100001"],["dc.identifier.pmid","26894981"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/39735"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","E H Angle Education Research Foundation, Inc"],["dc.relation.issn","1945-7103"],["dc.relation.issn","0003-3219"],["dc.title","Interaction between deglutition, tongue posture, and malocclusion: A comparison of intraoral compartment formation in subjects with neutral occlusion or different types of malocclusion"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","181"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Orthodontics and Craniofacial Research"],["dc.bibliographiccitation.lastpage","188"],["dc.bibliographiccitation.volume","14"],["dc.contributor.author","Knoesel, Michael"],["dc.contributor.author","Klein, Sabine"],["dc.contributor.author","Bleckmann, Annalen"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.date.accessioned","2018-11-07T08:53:50Z"],["dc.date.available","2018-11-07T08:53:50Z"],["dc.date.issued","2011"],["dc.description.abstract","Authors - Knosel M, Klein S, Bleckmann A, Engelke W Objective - To test the null hypothesis of no significant differences in (1) the duration of the post-deglutory, cranial tongue rest position (CTP) between different functional orofacial conditions and (2) the presence or absence of an oral screen (OS) in subjects with a habitual open-mouth posture. Subjects - Twenty-nine subjects (aged 6-16; mean: 9.69 years; 13/16 girls/boys) were selected according to the inclusion criterion of a habitual, daytime open-mouth posture. Methods - Deglutition was screened at baseline during resting respiration using orofacial polysensography and simultaneous assessment of tongue-to-palate position and nasal airstream, during five functional intervals of 8 min each: F1 without instruction (RR); F2 the same, but including an oral screen (RROS); F3 with OS and the instruction to maintain a tongue-to-palate contact (IROS); F4 with OS and the instruction to perform tongue repositioning manoeuvres at the time of spontaneous swallowing (TRMOS); and F5 corresponds to F3 omitting OS (IR). Duration and frequency of deglutition were analysed descriptively as well as by ANOVA and subsequent multiple comparisons, and the CTP was evaluated with chi-square tests and paired comparisons at a significance level of 5%. Results - Of 542 identified swallowing acts, 75% were accompanied by a post-deglutory CTP. Mean duration of CTP increased for functional conditions RR/1.01s > RROS/2.56s > IR/3.21s > IROS/6.53s > TRMOS/6.58s. The null hypothesis (1) was rejected in comparison of resting respiration (F1, F2) with IROS and TRMOS, whereas the use of an oral screen alone did not significantly prolong the duration of CTP."],["dc.identifier.doi","10.1111/j.1601-6343.2011.01515.x"],["dc.identifier.isi","000292929200009"],["dc.identifier.pmid","21771274"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/22522"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","1601-6335"],["dc.title","Tongue position after deglutition in subjects with habitual open-mouth posture under different functional conditions"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","437"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","European Journal of Orthodontics"],["dc.bibliographiccitation.lastpage","441"],["dc.bibliographiccitation.volume","34"],["dc.contributor.author","Jung, Klaus"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Knoesel, Michael"],["dc.date.accessioned","2018-11-07T09:07:47Z"],["dc.date.available","2018-11-07T09:07:47Z"],["dc.date.issued","2012"],["dc.description.abstract","A thorough understanding of the intraoral pressure conditions of patients with different forms of malocclusion may help to characterize their aetiology in more detail and improve orthodontic treatment approaches by adding strategies to achieve a normalization of intraoral pressure levels. These pressure curve analyses should not only provide information on intraoral activity or during rest but also detail characterization of swallowing features and pressure plateau stages. For this purpose, algorithms for extracting swallowing peaks and plateau stages were developed and evaluated. Established curve characteristics such as the average or maximum pressure as well as the number of swallowing peaks or resting phases were compared between each other. Their usefulness and correlation (Kendall's tau) were evaluated in a data example of different occlusal groups (Angle Class I: n = 30; Angle Class II division 1: n = 12; and Angle Class II division 2: n = 13). Curve characteristics were compared among these groups using the Kruskal-Wallis test. Some of the derived curve characteristics were found to be uncorrelated, thus providing different information concerning the intraoral pressure condition of subjects. Based on these findings, it is recommended to employ the curve characteristics described in this study to obtain a holistic image of factors that may affect the formation of the dentition."],["dc.identifier.doi","10.1093/ejo/cjr039"],["dc.identifier.isi","000307171600006"],["dc.identifier.pmid","21508265"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/25881"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Oxford Univ Press"],["dc.relation.issn","0141-5387"],["dc.title","Statistical signal processing methods for intraoral pressure curve analysis in orthodontics"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","374"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","European Journal of Orthodontics"],["dc.bibliographiccitation.lastpage","380"],["dc.bibliographiccitation.volume","30"],["dc.contributor.author","Knoesel, Michael"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Attin, Rengin"],["dc.contributor.author","Kubein-Meesenburg, Dietmar"],["dc.contributor.author","Sadat-Khonsari, Reza"],["dc.contributor.author","Gripp-Rudolph, Liliam"],["dc.date.accessioned","2018-11-07T11:12:24Z"],["dc.date.available","2018-11-07T11:12:24Z"],["dc.date.issued","2008"],["dc.description.abstract","Different craniofacial properties require individual targets in incisor inclination. These requirements are mostly scheduled on the basis of cephalometric diagnosis, but, however, performed using straightwire appliances, which refer to third-order angles and not to cephalometric data. The objective of this study was to analyze the relationship between incisor third-order angles, incisor inclination, and skeletal craniofacial findings in untreated ideal occlusion subjects with natural dentoalveolar compensation of skeletal variation, in order to link the field of cephalometric assessment of incisor inclination with that of contemporary orthodontic incisor inclination correction. This study utilized lateral cephalograms and corresponding dental casts of 69 untreated Caucasians (21 males and 48 females between 12 and 35 years of age) with neutral (Angle Class I) molar and canine relationships and an incisor relationship that was sagittaly and vertically considered as ideal by three orthodontists (i.e. well supported by the antagonistic teeth and without the need for either deep or open bite correction). Upper (U1) and lower (L1) axial incisor inclinations were assessed with reference to the cephalometric lines NA and NL, and NB and ML, respectively. Sagittal and vertical skeletal relationships were classified using SNA (SNB) and NSL-ML (NSL-NL) angles. Third-order angles (U1TA and L1TA) were derived from direct dental cast measurements using an incisor inclination-recording appliance. The relationships between cephalometric and third-order measurements evaluated by calculating Pearson product-moment correlation coefficients (a = 0.05) showed strong correlations between cephalometric axial inclination data (U1NA/deg, L1NB/deg, U1NA/mm, L1NB/mm, U1NL, and L1ML) and sagittal-skeletal data, but no significant relationship between skeletal-vertical findings and incisor inclination. The mean U1TA was 4.9 (standard deviation [SD] 5.85) and the mean L1TA -3.0 (SD 6.9) degrees. Regression analyses were used for axial inclination (ANB angle designated as the independent variable) and for third-order data (U1NA, L1NB, U1NL, and L1ML designated as independent variables). Based on the correlations found in this study, a novel method for defining targets in upper and lower incisor third-order correction according to natural standards is presented. As a consequence, third-order movements can be adapted to cephalometric diagnosis with enhanced accuracy."],["dc.identifier.doi","10.1093/ejo/cjn015"],["dc.identifier.isi","000258330100007"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/53657"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Oxford Univ Press"],["dc.relation.issn","0141-5387"],["dc.title","A method for defining targets in contemporary incisor inclination correction"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","490"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","European Journal of Orthodontics"],["dc.bibliographiccitation.lastpage","495"],["dc.bibliographiccitation.volume","32"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Engelhardt, Wolfgang"],["dc.contributor.author","Mendoza-Gaertner, Milagros"],["dc.contributor.author","Decco, Oscar A."],["dc.contributor.author","Barrirero, Jenifer"],["dc.contributor.author","Knoesel, Michael"],["dc.date.accessioned","2018-11-07T08:38:25Z"],["dc.date.available","2018-11-07T08:38:25Z"],["dc.date.issued","2010"],["dc.description.abstract","Orofacial biofunction comprises muscular and physical effects, which may contribute to stabilization of the oropharyngeal airway. The tongue-repositioning manoeuvre (TRM) provides physical stabilization of the tongue and the soft palate together with, as a prerequisite, a nasal breathing mode. The aim of the present study was to evaluate the influence of a TRM treatment concept on primary snoring. The TRM was used to achieve a closed biofunctional rest position of the orofacial system and to reeducate the nasal breathing pattern. Pressure indicating oral shields were used for home exercises as a biofeedback instrument and to support nocturnal mouth closure. Treatment was undertaken on 125 consecutive primary snorers [101 males, mean age 52.4 years, range 34-75, mean body mass index (BMI) 28.1, range 18.9-38.5, and 24 females, mean age 55.2 years, range 36-70, mean BMI 26.8, range 22.7-31.9]. Bed partner ranking was performed, and snoring was judged using a 10-cm visual analogue scale (VAS). The VAS score was 8.4 (range 6-10) before treatment and decreased to 4.1 (range 0-10) after treatment [mean observation time 4.6 months (1-10)]. Analysis of variance showed a significant influence of treatment in subjects with a normal body weight (BMI 18.5-25). The data provide evidence that dynamic stabilization of the orofacial system with the TRM in conjunction with nocturnal wear of an oral shield is beneficial for reducing the symptoms in primary snorers with a normal BMI."],["dc.identifier.doi","10.1093/ejo/cjp135"],["dc.identifier.isi","000282426900002"],["dc.identifier.pmid","20110305"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/18763"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Oxford Univ Press"],["dc.relation.issn","0141-5387"],["dc.title","Functional treatment of snoring based on the tongue-repositioning manoeuvre"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","535"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","European Journal of Orthodontics"],["dc.bibliographiccitation.lastpage","541"],["dc.bibliographiccitation.volume","32"],["dc.contributor.author","Knoesel, Michael"],["dc.contributor.author","Jung, Klaus"],["dc.contributor.author","Kinzinger, Gero"],["dc.contributor.author","Bauss, Oskar"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.date.accessioned","2018-11-07T08:38:25Z"],["dc.date.available","2018-11-07T08:38:25Z"],["dc.date.issued","2010"],["dc.description.abstract","The purpose of this study was to quantify the impact of oral screen (OS) application on intra-oral pressure characteristics in three malocclusion groups. Fifty-six randomly recruited participants (26 males and 30 females) who met the inclusion criteria of either an Angle Class I occlusal relationships or Angle Class II1 or II2 malocclusions, were assigned by dentition to group I (n = 31), group II1 (n = 12), or group II2 (n = 13). Two 3 minute periods of intra-oral pressure monitoring were conducted on each participant, using two different oral end fittings connected to a piezo-resistive relative pressure sensor: (1) a flexible OS and (2) a small-dimensioned air-permeable end cap (EC), which was placed laterally in the premolar region, thus recording intra-oral pressure independent of the influence of the OS. Pressure curve characteristics for both periods and between the malocclusion groups were evaluated with reference to the frequency of swallowing peaks, duration, and altitude of negative pressure plateau phases and the area under the pressure curve. Statistical analysis was undertaken using analysis of variance (ANOVA), the Wilcoxon Mann-Whitney test, and spearman correlation coefficient. A median number of two peaks (median height -20.9 mbar) and three plateau phases (median height of -2.3 mbar) may be regarded as normative for normal occlusion subjects during a 3 minute period, at rest. OS application raised the median average duration and height of intra-oral negative pressure plateau phases in the II1 subjects, exceeding those of group I, but less than the plateau duration in group II2. Median peak heights were distinctively lower in groups I and II1 during OS application. It is concluded that additional training for extension of intra-oral pressure phases may be a promising approach to pre-orthodontic Class II division 1 treatment."],["dc.identifier.doi","10.1093/ejo/cjp121"],["dc.identifier.isi","000282426900008"],["dc.identifier.pmid","20663779"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/18764"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Oxford Univ Press"],["dc.relation.issn","0141-5387"],["dc.title","A controlled evaluation of oral screen effects on intra-oral pressure curve characteristics"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","165"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Clinical Oral Investigations"],["dc.bibliographiccitation.lastpage","176"],["dc.bibliographiccitation.volume","15"],["dc.contributor.author","Engelke, Wilfried G. H."],["dc.contributor.author","Jung, Klaus"],["dc.contributor.author","Knoesel, Michael"],["dc.date.accessioned","2018-11-07T08:57:53Z"],["dc.date.available","2018-11-07T08:57:53Z"],["dc.date.issued","2011"],["dc.description.abstract","Oral posture is considered to have a major influence on the development and reoccurrence of malocclusion. A biofunctional model was tested with the null hypotheses that (1) there are no significant differences between pressures during different oral functions and (2) between pressure measurements in different oral compartments in order to substantiate various postural conditions at rest by intra-oral pressure dynamics. Atmospheric pressure monitoring was simultaneously carried out with a digital manometer in the vestibular inter-occlusal space (IOS) and at the palatal vault (sub-palatal space, SPS). Twenty subjects with normal occlusion were evaluated during the open-mouth condition (OC), gently closed lips (semi-open compartment condition, SC), with closed compartments after the generation of a negative pressure (CCN) and swallowing (SW). Pressure curve characteristics were compared between the different measurement phases (OC, SC, CCN, SW) as well as between the two compartments (IOS, SPS) using analysis of variance and Wilcoxon matched-pairs tests adopting a significance level of alpha = 0.05. Both null hypotheses were rejected. Average pressures (IOS, SPS) in the experimental phases were 0.0, -0.08 (OC); -0.16, -1.0 (SC); -48.79, -81.86 (CCN); and -29.25, -62.51 (SW) mbar. CCN plateau and peak characteristics significantly differed between the two compartments SPS and IOS. These results indicate the formation of two different intra-oral functional anatomical compartments which provide a deeper understanding of orofacial biofunctions and explain previous observations of negative intra-oral pressures at rest."],["dc.identifier.doi","10.1007/s00784-009-0367-0"],["dc.identifier.isi","000288256200005"],["dc.identifier.pmid","20127264"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/6647"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/23511"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.publisher.place","Heidelberg"],["dc.relation.issn","1432-6981"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Intra-oral compartment pressures: a biofunctional model and experimental measurements under different conditions of posture"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]