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.

Changes in the Complexity of Orthodontic Treatment for Patients Referred to a Teaching Hospital

1988 ◽  
Vol 15 (1) ◽  
pp. 27-32 ◽  
Author(s):  
C. D. Stephens ◽  
N. W. Harradine
Keyword(s):  
General Practitioner ◽  
Orthognathic Surgery ◽  
Orthodontic Treatment ◽  
Further Training ◽  
Fixed Appliance ◽  
Dental Hospital ◽  
Orthodontic Patients ◽  
Specialist Treatment ◽  
Fixed Appliances ◽  
Removable Appliance

The records of 200 orthodontic patients accepted for treatment by the Orthodontic Department of the Bristol Dental Hospital in 1977 were compared with 200 taken on in 1985 in order to determine whether there had been any change in the proportion of referred cases requiring more complex procedures. Within each sample, cases were categorized as follows: (a) suitable for removable appliance treatment by an undergraduate or general practitioner; (b) requiring simple one arch fixed appliance treatment such as might he attempted by a general practitioner after a period of further training; (c) needing specialist treatment such as full multibracketed fixed appliances or orthognathic surgery. It was found that there had been no change in the proportions of simple and complex cases referred during the 8-year period although the proportion of patients now receiving complex treatment had increased greatly. Possible explanations and implications are discussed.

scholarly journals Penilaian tingkat keberhasilan perawatan ortodontik dengan piranti lepasan berdasarkan indeks PAR Assessment of success rate of orthodontic treatment using removable appliance based on PAR index

2011 ◽  
Vol 10 (3) ◽  
pp. 144
Author(s):  
Muh. Irwansyah ◽  
Eka Erwansyah
Keyword(s):  
Success Rate ◽  
Orthodontic Treatment ◽  
Treatment Success ◽  
Orthodontic Appliances ◽  
Inclusion Criteria ◽  
Par Index ◽  
Dental Models ◽  
Removable Appliance ◽  
Removable Appliances ◽  
Removable Orthodontic Appliances

The success of orthodontic treatment, particularly with removable orthodontic appliances not only relies on theexpertise of the clinician, but also highly depends on the patient's own. It is necessary to know the extent of thesuccess rate of an orthodontic treatment. Assessment of malocclusion severity and treatment outcome has become avery popular object of research conducted by the PAR index. This study aims to determine the success rate oforthodontic treatment with removable appliances based on PAR Index. The research was carried out on March-May2011 with samples of patients dental models who had completed orthodontic treatment in the year 2008-2011 at theDepartment of Ortodonsia RSGMP UNHAS. Sixty six pairs of dental models fulfilled the inclusion criteria and therules of PAR Index. Percentage change in PAR score obtained by 35% in the assessment with no weighted and 36%was assessment by weighted. This results showed the level of orthodontic treatment success include into thecategory of "no change", but with a trend into the category of "a change "with a significant value ρ = 0.000 (ρ <0.05). It was concluded that there was occlusion improvements in orthodontic treatment with removable appliance,although very low and therefore need evaluation and improvement of governance maintenance carried out.

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 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 &lt; .001). Sagittal skeletal maxillomandibular differences were improved after treatment (P &lt; .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 Postoperative Stability of Patients Undergoing Orthognathic Surgery with Orthodontic Treatment Using Clear Aligners: A Preliminary Study

2021 ◽  
Vol 11 (23) ◽  
pp. 11216
Author(s):  
Chiho Moon ◽  
George K. Sándor ◽  
Edward Chengchuan Ko ◽  
Yong-Deok Kim
Keyword(s):  
Treatment Period ◽  
Orthognathic Surgery ◽  
Orthodontic Treatment ◽  
Control Group ◽  
Orthodontic Appliances ◽  
Fixed Appliance ◽  
Fixed Orthodontic Appliances ◽  
Significant Difference ◽  
Preliminary Study ◽  
Clear Aligner

Backgrond: Until now, there have been many studies on the postoperative stability of orthognathic patients treated with traditional fixed orthodontic appliances. Recently, the use of clear aligners as orthodontic appliances has increased in orthodontic treatment for aesthetic and patient convenience. The aim of this preliminary study was to investigate the stability and characteristics of patients undergoing orthognathic surgery using clear aligners. Patients and Methods: This study was performed on patients who underwent orthognathic surgery by one surgeon at Pusan National University Dental Hospital from April 2017 to August 2021. A comparative study was conducted on five patients treated with clear aligners during orthodontic treatment and ten patients treated with traditional fixed appliances as a control group. Postoperative skeletal changes and recurrence were evaluated by cone beam computed tomography and lateral cephalometric radiographs taken two days postoperatively and six months postoperatively. Several measurement variables were used to confirm the presence or absence of recurrence, preoperative and postoperative orthodontic treatment period, and the number of extracted teeth. Results: Postoperative stability for six months after surgery was not significantly different between the clear aligner group and the traditional fixed appliance group. The preoperative orthodontic treatment period was also shorter in the clear aligner group, and the number of extracted premolar teeth and impacted teeth were also fewer in the clear aligner group, but there was no significant difference. Conclusions: Orthodontic treatment using clear aligners continues to develop, and it is believed that there is no limit to what can be accomplished during orthodontic surgery accompanied by clear aligners.

scholarly journals Kombinasi penggunaan quadhelix dan tanggul gigitan posterior pada perawatan crossbite anterior

2017 ◽  
Vol 2 (1) ◽  
pp. 47
Author(s):  
Rhabiah El Fithriyah
Keyword(s):  
Female Patient ◽  
Active Treatment ◽  
Orthodontic Treatment ◽  
Treatment Plan ◽  
Median Line ◽  
Fixed Appliance ◽  
Anterior Crowding ◽  
Fixed Appliances ◽  
Removable Appliances ◽  
Quad Helix

Combination quad helix and bite riser posterior for anterior crossbite treatment. Anterior crossbite treatment can be done with the appliances either by removable appliances or fixed appliances. One fixed appliance that can be used in the treatment of anterior crossbite is a quad helix with a combination of bite raiser posterior. It is the preferred appliance for correction of maxillary dental constriction in a preadolescent child. Quad helix is activated by widening the anterior or posterior helices. An 11-year-old female patient referred to the clinic with a problem of crowding teeth that affected her appearance. The diagnosis for her case was malocclusions dentoalveolar class I angle along with anterior crossbite 12 and 21, anterior crowding maxilla with convex face profile, shifted median line, and no TMJ disorder. The treatment plan used a quad helix and bite riser posterior followed by a fixed orthodontic treatment. The aim of this study was to correct the anterior crossbite using a combination of a quad helix and bite raiser posterior. The patient was treated using composite bite raiser posterior on the occlusal surface of 16.26, and quad helix soldered to bands and cemented on 16 and 26. The patient was instructed to get her teeth controlled every two week to activate quad helix. After 3 months of active treatment, anterior crossbite was corrected. The appliance was left passively in place for 3 months as retention. The study concluded that crossbite treatment with a combination of a quad helix and bite riser was effective in correcting anterior crossbite in adolescents.ABSTRAKPerawatan crossbite anterior dapat dilakukan dengan beberapa macam alat baik dengan alat lepasan ataupun alat cekat. Salah satu alat semi cekat yang dapat digunakan pada perawatan crossbite anterior adalah quad helix dengan kombinasi tanggul gigitan posterior. Quad helix merupakan alat yang dapat digunakan untuk konstriksi dental di maksila pada masa remaja. Seorang pasien anak perempuan berusia 11 tahun mengeluhkan keadaan giginya yang berjejal dan menganggu penampilannya. Diagnosis kasus adalah maloklusi dentoalveolar kelas I angle disertai crossbite gigi 12 dan 21, crowding anterior rahang atas dengan profil muka cembung, garis median tidak sesuai dan tidak disertai gangguan TMJ. Rencana perawatan menggunakan quad helix dan tanggul gigitan posterior kemudian dilanjutkan dengan perawatan ortodontik cekat. Tujuan artikel ini adalah menyajikan perawatan crossbite anterior dengan menggunakan kombinasi quad helix dan tanggul gigitan posterior. Pasien dirawat menggunakan tanggul gigitan komposit posterior pada permukaan oklusal gigi 16, 26 dan quad helix yang disolder pada molar band dan disementasi di molar band pada gigi 16 dan 26 kemudian pasien diinstruksikan untuk kontrol setiap dua minggu satu kali kunjungan untuk aktivasi quad helix. Setelah perawatan aktif 3 bulan crossbite anterior telah terkoreksi. Alat ditinggalkan di dalam mulut dalam keadaan pasif selama 3 bulan sebagai retensi. Dapat ditarik kesimpulan bahwa perawatan crossbite dengan kombinasi quad helix dan tanggul gigitan posterior efektif dalam mengoreksi  crossbite anterior pada remaja.

scholarly journals Cephalometric Hard and Soft Tissue Norms for Sudanese Adults

2015 ◽  
Vol 5 (2) ◽  
pp. 28-32
Author(s):  
Eman I Salama ◽  
Amal H Abuaffan
Keyword(s):  
Soft Tissue ◽  
Orthodontic Treatment ◽  
Normative Values ◽  
Racial Groups ◽  
Tissue Analysis ◽  
Linear Measurements ◽  
Facial Profile ◽  
Mean Values ◽  
Significant Difference ◽  
Maxilla And Mandible

Introduction: Cephalometric norms of various populations show differences between diverse ethnic and racial groups. Thus, numbers of cephalometric norms have been established for different ethnic groups.Objective: To assess skeletal, dental and soft tissue features in a sample of well-balanced face of Sudanese university students.Materials & method: Lateral cephalographs were taken from 18-25 years old 35 male and 38 female Sudanese university students with balanced facial profile and Class I occlusion with no previous orthodontic treatment. Fourteen angular and five linear measurements, and facial index were recorded according to Husund analysis. Male and female mean values were compared statistically using Student t-test.Result: Statistically significant differences were noted between both genders especially in skeletal variables SNA˚, SNB˚, SNPg˚, ML- NSL˚, NL-NSL˚, UFH, LFH and dental variable I -Ī. Holdaway angle showed no significant difference between the genders. Skeletally, maxilla and mandible of the Sudanese sample were more prognathic compared to Caucasians and Arabs but less prognathic than the Africans. Dentally, maxillary and mandibular incisors were more proclined compared to Arabs and Caucasians. Soft tissue analysis showed more lip protrusion in Sudanese adults.Conclusion: The study offered normative cephalometric standards for Sudanese adults, which were specific for each gender group. The normative values showed that the Sudanese sample lied between African and Arab values which might suggest that the studied sample had an Afro-Arabian mixture.

Changes in Molar Occlusion after Extraction of All First Pre-molars: A Follow-up Study of Class II Division 1 Cases Treated with Removable Appliances

1980 ◽  
Vol 7 (3) ◽  
pp. 139-144 ◽  
Author(s):  
C. D. Stephens ◽  
T. G. Lloyd
Keyword(s):  
Orthodontic Treatment ◽  
Class Ii ◽  
Division I ◽  
Follow Up Study ◽  
Division 1 ◽  
Spontaneous Improvement ◽  
Removable Appliance ◽  
Removable Appliances ◽  
Class Ii Division 1

Spontaneous improvement in molar occlusion is often assumed to accompany orthodontic treatment of the Class II Division I case where all pre-molars have been removed. The investigation shows that while the buccal occlusion generally improves after the completion of removable appliance treatment this is seldom enough to correct a Class II molar relationship.

scholarly journals Does anchorage loss differ with 0.018-inch and 0.022-inch slot bracket systems?

2019 ◽  
Vol 89 (4) ◽  
pp. 605-610
Author(s):  
Yassir A. Yassir ◽  
Grant T. McIntyre ◽  
Ahmed M. El-Angbawi ◽  
David R. Bearn
Keyword(s):  
Orthodontic Treatment ◽  
Three Dimensional ◽  
Total Sample ◽  
Fixed Appliance ◽  
The Third ◽  
Significant Difference ◽  
Maxillary Molar ◽  
Slot Size ◽  
Baseline Characteristics ◽  
Anchorage Loss

ABSTRACT Objectives: To compare maxillary first molar anchorage loss between 0.018-inch and 0.022-inch slot fixed appliance systems. Materials and Methods: Patients requiring bilateral maxillary premolar extractions (n = 74) within a randomized clinical trial comparing the effectiveness of 0.018-inch and 0.022-inch slot MBT bracket systems (3M-Unitek, Monrovia, Calif) were included. Three-dimensional pre- and posttreatment digital models were landmarked and measured (R700 scanner and OrthoAnalyzer software, 3Shape, Copenhagen, Denmark). Anteroposterior position of the first molars was measured using the third medial rugae point as a reference. Anchorage loss (AL) represented the subtraction of the posttreatment distance from the pretreatment distance for both anchorage loss right (ALR) and left (ALL) sides. The values were then compared using a two-way analysis of variance. Results: There were 41 and 33 cases for the 0.018-inch and 0.022-inch bracket slot systems, respectively. The baseline characteristics were similar between groups, except for the presence or absence of anchorage devices (P = .050). For the total sample: 0.018-inch ALR = 3.86 mm, ALL = 3.30 mm and 0.022-inch ALR = 3.73 mm, ALL = 3.47 mm (P = .970). There was also no significant difference between the 0.018-inch and 0.022-inch groups when subjects with anchorage devices were excluded (P = .383). Conclusions: Bracket slot size does not influence maxillary molar anchorage loss during orthodontic treatment.

scholarly journals Effect of fixed-appliance orthodontic treatment on DMFT-index

2021 ◽  
Vol 66 (2) ◽  
pp. 81-86
Author(s):  
Efka Zabokova-Bilbilova ◽  
Emilija Sefanovska ◽  
Aneta Mijoska ◽  
Olga Kokoceva-Ivanovska
Keyword(s):  
Oral Hygiene ◽  
Orthodontic Treatment ◽  
Oral Health Status ◽  
Control Group ◽  
Orthodontic Appliance ◽  
Fixed Appliance ◽  
Significant Difference ◽  
Dmft Index ◽  
Tooth Mousse ◽  
Fixed Orthodontic Appliance

The aim of the study was to evaluate changes in dental status during fixed orthodontic treatment. A total of 60 patients with diagnosed malocclusion were included. Subjects were divided in 3 groups (20 subjects in each group). The first group was treated with dental cream GC Tooth Mousse, and the second group with Fluorogal - solution with a low concentration of fluoride (0.05% F). Control group comprised 20 patients. All subjects received precise instructions for oral hygiene and exclusion of dietary intake before fixed orthodontic appliance was placed and during each control. In our study clinical oral health status (DMFT-index) was registered before and at the end of the orthodontic treatment. The subjects treated with dental cream GC Tooth Mousse at the end of the orthodontic treatment had increased DMFT-index 5.85 in comparison to the beginning of the treatment, where the average value of the index was 5.25 (however, the difference was not statistically significant). A statistically significant difference between medium values of the DMFT-index before and after the orthodontic treatment was detected in the control group. The results of this study show that DMFT-index increased in a group of dental patients undergoing orthodontic therapy with fixed appliances. The patients must follow good instructions, motivation, and control of oral hygiene during the treatment. Key words: carious lesions, fixed orthodontic appliance

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