scholarly journals A comparison of treatment results of adult deep-bite cases treated with lingual and labial fixed appliances

2021 ◽  
Author(s):  
Hande Pamukçu ◽  
Ömür Polat Özsoy
Keyword(s):  
Orthodontic Treatment ◽  
Inclusion Criteria ◽  
Treatment Results ◽  
Lower Incisor ◽  
Deep Bite ◽  
Mandibular Plane ◽  
Number Of Patients ◽  
Significant Difference ◽  
Fixed Appliances ◽  
Lower Incisors

ABSTRACT Objectives To compare the cephalometric treatment results of adult deep-bite cases after labial and lingual fixed orthodontic treatment. Materials and Methods A total of 102 patients underwent lingual orthodontic treatment and complete records were evaluated. The following inclusion criteria were used: patients who had Angle Class I or mild Class II malocclusion; comprehensive orthodontic treatment that did not include intrusion mechanics or any extractions; patients with an initial overbite of more than 3.7 mm. Thirteen patients met the inclusion criteria. These cases were matched with the same number of patients according to age with a labial orthodontic treatment group. Pre- and post-treatment cephalometric radiographs were evaluated. Independent t test or Fisher exact tests were performed to assess the differences between the groups. Results Proclination of the upper incisors was higher in the labial group. Incisor mandibular plane angle (IMPA) showed an increase of 1.2° in the lingual group and 9.7° in the labial group. Lower incisor edge was approximately in a stable sagittal position in the lingual group but significant lower incisor proclination was seen in the labial group. The lower incisors were intruded (-1 mm) in the lingual group but lower incisors were minimally extruded (0.3 mm) in the labial group. No significant difference was found in the movements of upper and lower molars for both groups. Conclusions The nature of lower incisor movement involved less protrusion in lingual orthodontics than the labial treatment. Lingual orthodontic treatment is a better option in adult cases where intrusion of lower incisors without labial tipping is desired.

scholarly journals Relationship between orthodontic treatment and gingival health: A retrospective study

2014 ◽  
Vol 08 (03) ◽  
pp. 373-380 ◽  
Author(s):  
Fatma Boke ◽  
Cagri Gazioglu ◽  
Sevil Akkaya ◽  
Murat Akkaya
Keyword(s):  
Retrospective Study ◽  
Orthodontic Treatment ◽  
Gingival Recession ◽  
Orthodontic Appliances ◽  
Lower Incisor ◽  
Gingival Health ◽  
Fixed Orthodontic Appliances ◽  
Significant Difference ◽  
Before And After ◽  
The Relationship

ABSTRACT Objective: The aim of this retrospective study was to evaluate the relationship between orthodontic treatment and gingival health. Materials and Methods: A total of 251 patients among whom 177 were girls and 74 were boys, recruited from the records pool of the Department of Orthodontics, Faculty of Dentistry, University of Gazi, were included in the study. Patients’ treatments have been completed by postgraduate students during the period between 2006 and 2012. Patients’ folders were analyzed according to their age, treatment time, and the type of orthodontic treatment. Intra-oral photographs were analyzed, and the presence or absence of visible plaque, visible inflammation, and gingival recession were recorded, and incisor inclinations analyzed on lateral cephalometric films, before and after orthodontic treatment. Results: No statistically significant difference was found in patients treated with functional appliances before and after treatment. In patients treated with fixed orthodontic appliances, visible plaque, visible inflammation, and gingival recession showed significant increases after treatment, gingival biotype did not show any significant difference. Positive correlation was found between lower incisor position and gingival recession in patients treated with fixed appliance and extraction. And also cuspids were the teeth with the highest prevalence of gingival recession. Conclusion: Considering the relationship between orthodontic treatment and gingival health, cooperation among patients, orthodontists, and periodontists is important.

scholarly journals Orthodontic Treatment of a Mandibular Incisor Extraction Case with Invisalign

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
Khalid H. Zawawi
Keyword(s):  
Treatment Option ◽  
Orthodontic Treatment ◽  
Adult Patients ◽  
Class I ◽  
Effective Treatment Option ◽  
Mandibular Incisor ◽  
Anterior Crowding ◽  
Number Of Patients ◽  
Orthodontic Patients ◽  
Fixed Appliances

Mandibular incisor extraction for orthodontic treatment is considered an unusual treatment option because of the limited number of patients that meet the criteria for such treatment. Accurate diagnosis and treatment planning is essential to achieve the desired results. Adult orthodontic patients are increasingly motivated by esthetic considerations and reject the idea of conventional fixed appliances. In recent years, Invisalign appliances have gained tremendous attention for orthodontic treatment of adult patients to meet their esthetic demands. In this case report, a case of Class I malocclusion was treated with mandibular incisor extraction using the Invisalign appliance system. Successful tooth alignment of both arches was achieved. The use of Invisalign appliance is an effective treatment option in adult patients with Class I malocclusion that requires incisor extraction due to moderate to severe mandibular anterior crowding.

scholarly journals Evaluation and Comparison of Skeletal and Dental Components of Deep Overbite Malocclusion with Normal Occlusion

2021 ◽  
Vol 10 (20) ◽  
pp. 1519-1524
Author(s):  
Harshil Naresh Joshi
Keyword(s):  
Treatment Plan ◽  
Test Results ◽  
Contributing Factors ◽  
Deep Bite ◽  
Curve Of Spee ◽  
Mandibular Plane ◽  
Normal Occlusion ◽  
Lateral Cephalograms ◽  
Significant Difference ◽  
Mandibular First Molar

BACKGROUND A deep overbite may be due to an underlying skeletal or dentoalveolar component that may influence the treatment plan. The purpose of this study was to evaluate and compare the different components of deep bite malocclusion and normal occlusion. METHODS This was a case control study. Lateral cephalograms and study casts of normal (N = 50) and deep overbite (N = 50) subjects were used to evaluate skeletal and dentoalveolar components. Data was analysed statistically by independent t - test. RESULTS The significant skeletal contributing factors were gonial angles, mandibular plane, maxillary plane angle & ramus / Frankfort horizontal. An increased curve of Spee and decreased mandibular first molar height were predominant dental variables in the deep overbite group. The inclination of the upper incisors & lower incisors height did not show a statistically significant difference between the two groups. CONCLUSIONS The counterclockwise rotation of the mandible and the increased curve of Spee were the dominant features of deep bite malocclusion. This analysis of deep overbite components could help clinicians design individualised mechanotherapy based on the underlying cause rather than being prejudiced toward conventional mechanics when correcting with a deep overbite malocclusion. KEY WORDS Skeletal and Dental Components, Deep Overbite, Ramus / Frankfort Horizontal

scholarly journals RELATIONSHIP BETWEEN OCCLUSAL PLANE ORIENTATION AND SAGITTAL MALOCCLUSIONS: STUDY OF AN ORTHODONTIC POPULATION

2021 ◽  
pp. 1-6
Author(s):  
INES DALLEL ◽  
SANA KANOUN ◽  
MARIEM NAHDI ◽  
MONCEF OMMEZINE ◽  
SAMIR TOBJI ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Class Ii ◽  
Significant Rise ◽  
Class I ◽  
Occlusal Plane ◽  
Class Iii ◽  
Angle Class ◽  
Mandibular Plane ◽  
Significant Difference ◽  
Skeletal Pattern

Objective: The aim of this study was to evaluate the association of the skeletal pattern and angle class with the occlusal plane (OP). This study also examined the effect of orthodontic treatment on this plane. Methods: Lateral cephalometric radiographs of a sample of 135 patients were collected. The angles between the Frankfort horizontal, palatal plane (PP), mandibular plane (MP), and the OP were analyzed and compared between several groups and subsequently before and after treatment. Results: The statistical comparison between 3 skeletal frame groups demonstrates that the cant of the OP showed a major difference. This difference was greater in class III subjects. Examination revealed that the OP was not meaningfully affected within the Angle classification. Statistically, a significant correlation was found between OP steepness and the vertical skeletal pattern. A significant rise of OP/sella-nasion (SN) for class I (p=0.019) and II (p=0.015) after orthodontic treatment. In addition, patients treated with elastics showed a significant decrease of OP/MP (mandibular plane) in Angle class III and considerable increase of OP/SN and OP/PP in Angle class II. Observations of the group treated with bimaxillary extractions showed that OP/SN (sella nasion line) and OP/PP differ in a meaningful way. Conclusion: This study confirms the association between the skeletal pattern and the OP inclination in adults. Concerning the Angle classification, there was no significant difference between the groups. Orthodontic therapy had an influence on the inclination of this plane for the different malocclusions. Premolars extraction in class I cases significantly modified the OP. For class II and III malocclusions, the OP inclination was mainly altered by the use of intermaxillary traction elastics.

Evaluation of Cephalometric Standards for Zanjanian Population According to Downs' Analysis

2021 ◽  
Vol 15 (2) ◽  
Author(s):  
Katayoon Khaleghi ◽  
Azin Nourian ◽  
Pooya Ghorbankhan ◽  
Arash Farzan
Keyword(s):  
Statistical Analysis ◽  
Class Ii ◽  
Plane Angle ◽  
Gender Comparison ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Mandibular Plane ◽  
Significant Difference ◽  
Males And Females ◽  
Lower Incisors

Background: Following the morphological features of different races and ethnic groups, knowledge of standard dentofacial patterns of each ethnic group is essential. Therefore, this study aimed to explain cephalometric standards for the Zanjanian population according to Downs' analysis and compare them to Caucasian individuals. Methods: Seventy lateral cephalometries of Zanjanian adults (17 - 29 years old) who had been referred to a private orthodontic office in Zanjan, Iran with class I molar and canine relationship and normal overjet and overbite as well as minimum crowding/spacing/rotations were scanned and traced with the Novatech scanner and Dolphin software version 10. Next, statistical analyses were performed in order to compare the Zanjanian population to Caucasians. Results: We found a significant difference between males and females in terms of interincisal angle, incisor-occlusal angle, incisor-mandibular plane angle, upper incisor proclination, facial angle, and angle of convexity. Discussion: The analysis of six statistically significant parameters indicates that the upper and lower incisors in women of Zanjan were proclined and protruded compared with those of Caucasian subjects. Due to the statistical analysis on facial angle and angle of convexity, women also show more maxillary prognathism and skeletal class II pattern. Generally, a comparison of Zanjanian population cephalometrics based on Downs' analysis showed an increase in maxillary prognathism, maxillary and mandibular incisal protrusion and posterior rotation of the mandible. Conclusions: In conclusion, the Zanjanian population tends to have more dental and skeletal class II patterns than the Caucasians. In addition, gender comparison indicates lower and upper-incisors protrusion in women of Zanjan.

Effects of Three Different Orthodontic Treatment Methods on the Stability of Mandibular Incisor Alignment

2017 ◽  
Vol 41 (6) ◽  
pp. 486-493 ◽  
Author(s):  
Hande Gorucu-Coskuner ◽  
Ezgi Atik ◽  
Ilken Kocadereli
Keyword(s):  
Orthodontic Treatment ◽  
Dental Arch ◽  
Mandibular Incisor ◽  
Lower Incisor ◽  
Retention Period ◽  
Welch Test ◽  
The Stability ◽  
Cephalometric Measurements ◽  
Extraction Treatment ◽  
Lower Incisors

Objective: To compare the effects of extraction, non-extraction and air-rotor stripping treatments on mandibular dental arch dimensions, lower incisor positions and evaluate their effects on the stability of the treatment. Study design: The sample consisted of 44 patients with Class I malocclusion and moderate crowding including 15 patients treated with extraction, 13 with air-rotor stripping (ARS), and 16 with non-extraction treatment. The records were taken at pretreatment (T0), end of active orthodontic treatment (T1), minimum 3 years post-treatment (T2). The model and cephalometric measurements were evaluated. For statistical analyses ANOVA and Welch test was applied. Results: At post-retention period Little's irregularity indices were increased to 1.96 mm, 2.38 mm and 3.59 mm for extraction, ARS and non-extraction groups respectively (p<0.05). At T1-T2, intercanine widths were decreased significantly at all groups (p<0.05). The arch length and arch depth decreased significantly at extraction group (p<0.05) from T0 to T1 and remained the same at T2 (p>0.05). The lower incisors were retroclined with treatment and slightly proclined at post-retention period in extraction group. In ARS and non-extraction group, lower incisors proclined with treatment and remained the same at post-retention. Conclusion: At all groups the irregularity indices relapsed but did not return to pretreatment values. Although significant increase at intercanine width was only observed in non-extraction treatment, at post-retention phase, intercanine widths were significantly decreased at all groups. The changes at lower incisor inclinations relapsed slightly in extraction group but remained the same in the other groups.

scholarly journals Skeletal and dental effects of molar distalization using a modified palatal anchorage plate in adolescents

2014 ◽  
Vol 85 (4) ◽  
pp. 657-664 ◽  
Author(s):  
Noor Laith Sa'aed ◽  
Chong Ook Park ◽  
Mohamed Bayome ◽  
Jae Hyun Park ◽  
YoonJi Kim ◽  
...  
Keyword(s):  
Treatment Duration ◽  
Orthodontic Treatment ◽  
Class Ii ◽  
Class Ii Malocclusion ◽  
Treatment Results ◽  
Molar Distalization ◽  
Lateral Cephalograms ◽  
Significant Difference ◽  
Main Effect ◽  
Skeletal Effects

ABSTRACT Objective:  To evaluate and compare skeletal effects and the amount of molar distalization in maxilla using modified palatal anchorage plate (MPAP) vs headgear appliances in adolescent patients. Materials and Methods:  Pre- and posttreatment lateral cephalograms of 45 Class II malocclusion patients were analyzed; 24 were treated with MPAP appliances (age, 12.4 years) and 21 with headgear (age, 12.1 years). Fixed orthodontic treatment started with the distalization process in both groups. Thirty-two variables were measured and compared between both groups using multivariate analysis of covariates. Results:  There was no significant main effect of the appliance type on the treatment results (P  =  .063). Also, there was no significant main effect of the appliance type on both pre- and posttreatment comparisons (P  =  .0198 and .135, respectively). The MPAP and headgear groups showed significant distalization of maxillary first molars (3.06 ± 0.54 mm and 1.8 ± 0.58 mm, respectively; P < .001). Sagittal skeletal maxillomandibular differences were improved after treatment (P < .001), with no significant differences between the two groups. No significant difference in treatment duration was found between the groups. Conclusions:  The MPAP showed a significant skeletal effect on the maxilla. Both MPAP and headgear resulted in distalization of maxillary first molars. Therefore, it is recommended that clinicians consider the application of MPAP, especially in noncompliant Class II patients.

scholarly journals Root resorption in relation to a modified piezocision technique

2022 ◽  
Author(s):  
Juliana Gómez Arana ◽  
Diego Rey ◽  
Héctor Ríos ◽  
María Antonia Álvarez ◽  
Lucia Cevidanes ◽  
...  
Keyword(s):  
Root Length ◽  
Orthodontic Treatment ◽  
Root Resorption ◽  
Collagen Matrix ◽  
Control Group ◽  
Acceleration Techniques ◽  
Significant Difference ◽  
3D Collagen ◽  
Experimental Group ◽  
Lower Incisors

ABSTRACT Objectives To evaluate root resorption of lower incisors and canines quantitatively in a group of patients who underwent orthodontic treatment with piezocision and/or a collagen reinforcement technique with a fully resorbable three-dimensional (3D) collagen xenograft matrix compared with a control group. Materials and Methods The study sample of this secondary analysis consisted of 32 periodontally healthy patients with angle Class I malocclusion or mild Class II or III malocclusion and moderate irregularity index scores who underwent orthodontic treatment and had before (T0) and after treatment (T1) cone-beam computed tomography scans. Root resorption of lower incisors and canines was assessed quantitatively in the following four groups: the control group received orthodontic treatment without piezocision, experimental group 1 received orthodontic treatment with piezocision, experimental group 2 received orthodontic treatment with piezocision and a 3D collagen matrix, and experimental group 3 received orthodontic treatment with a 3D collagen matrix. Results An overall statistically significant decrease in root length from T0 to T1 for all groups was observed (P < .05). However, there was no significant difference among the groups in the amount of root length decrease from T0 to T1. Conclusions Orthodontic treatment combined with piezocision does not increase the risk of root resorption of lower incisors and canines when compared with orthodontic treatment without acceleration techniques. More studies with larger samples should be undertaken to confirm these results.

The Occlusal Index Used to Assess Orthodontic Treatment

1975 ◽  
Vol 2 (1) ◽  
pp. 47-51 ◽  
Author(s):  
Elizabeth A. Pickering ◽  
Peter Vig
Keyword(s):  
Orthodontic Treatment ◽  
Quantitative Assessment ◽  
Objective Analysis ◽  
Treatment Results ◽  
Fixed Appliance ◽  
Mean Values ◽  
London Hospital ◽  
Significant Difference ◽  
Removable Appliance ◽  
Removable Appliances

Search of the literature has failed to reveal any previous objective analysis of changes produced by treatment. Using the Occlusal Index a survey was carried out on study models of patients accepted for treatment in the Orthodontic Department of The London Hospital, over a nine year period (1963–71). The spread of severity of malocclusion of these patients was assessed to see if there had been a gradation in severity through the period as reflected by a trend in the yearly mean values of the Occlusal Index scores. Analysis of the results failed to show any discernible trend. The Occlusal Index was used to gain an objective and quantitative assessment of change produced by treatment and subsequently to correlate this change with the use of fixed and removable appliances. A slight but statistically significant difference was apparent in treatment results. Fixed appliance cases showed superiority to removable appliance cases, producing a better end result and greater degree of improvement. The difficulties in the use of application of the Occlusal Index to British cases are discussed and suggestions are made for modification.

Association of Curve of Spee with Vertical Skeletal Patterns

2020 ◽  
Vol 29 (04) ◽  
pp. 254-258
Author(s):  
Saad Abdul Rehman ◽  
◽  
Sadia Rizwan ◽  
Syed Shah Faisal ◽  
Syed Sheeraz Hussain
Keyword(s):  
Orthodontic Treatment ◽  
P Value ◽  
Lateral Cephalogram ◽  
Curve Of Spee ◽  
Mandibular Plane ◽  
Significant Difference ◽  
Line Angle ◽  
The Mean ◽  
Dent Assoc ◽  
One Way Anova

OBJECTIVE: To find the mean curve spee depth and association in three different skeletal vertical patterns (Hypodivergent, Normodivergent and Hyperdivergent). METHODOLOGY: Orthodontic models of mandibular arch and Lateral cephalogram of 110 patients with the mean age of 17.16±4 years, 26.4% (N=29) males and 73.6% (N=81) females were taken from the patients who visited for the orthodontic treatment, to the Department of Orthodontics of Karachi Medical and Dental College. Skeletal divergence defined by the mandibular plane (Lower border of mandible) to sella-nasion line angle (SN-MP). It was measured on lateral cephalogram and Curve of spee depth measured on mandibular cast. RESULTS:Out of 110 patients 20.9% (N= 23) were hypodivergent, 29.1% (N=32) were normodivergent and 50% (N=55) were hyperdivergent. The curve of spee among these three groups were 3.39±0.30mm, 2.62±0.23mm and 2.02±0.45mm. One-way ANOVA has been applied and it showed highly significant differences in the value of curve of spee depth among three vertical skeletal patterns with the p-value of 0.000. Moving from Hypodivergent to Hyperdivergent cases, the curve of Spee depth reduces. CONCLUSION: It has been found that there is a significant difference in curve of spee among hypodivergent, normodivergent and hyperdivergent patients. KEYWORDS: Dentistry, Curve of Spee, Vertical Skeletal Patterns, Orthodontic Diagnosis. HOW TO CITE: Rehman SA, Rizwan S, Faisal SS, Hussain SS. Association of curve of spee with vertical skeletal patterns. J Pak Dent Assoc 2020;29(4):254-258.

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