Therapeutic approach to Class II, Division 1 malocclusion with maxillary functional orthopedics

Neto, Aristeu Corrêa de Bittencourt; Saga, Armando Yukio; Pacheco, Ariel Adriano Reyes; Tanaka, Orlando Motohiro

doi:10.1590/2176-9451.20.4.099-125.sar

Cited by 10 publications

(14 citation statements)

References 27 publications

(35 reference statements)

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“…In the present case, Klammt II was the therapy of choice due to its bimaxillary action, which made it possible to treat mandibular retrognathism, as well as to reduce the proclination of the upper incisors, correcting the accentuated overbite and overjt, in agreement with studies reported in the literature [4]; [5]; [6].…”

Section: Discussionsupporting

confidence: 87%

“…The treatment of Class II, division 1 malocclusion, with mandibular deficiency in growing patients, aims at mandibular advancement to achieve better relationships between bone bases and improve the convex facial profile [3]; covers one or two phases. In the two-phase treatment, the first is carried out in mixed dentition with potential application of functional jaw orthopedics, followed by a corrective phase in the early permanent dentition [4]. The expected corrections through functional devices are more easily achieved in the transitional dentition, because the dental and skeletal structures are in full change, although the peak of puberty is still far away [5].…”

Section: Introductionmentioning

confidence: 99%

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Treatment of Class Ii Malocclusion with Klammt Appliance: Clinical Case Report

2023

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Objective: to report a clinical case of a young patient with Class II malocclusion, treated with the Klammt II Elastic Activator device, emphasizing the benefits of early treatment through Facial Jaw Orthopedics. Case Report: patient G.N.S., Class II division 1, female, caucasian, Brazilian, 10 years and 10 months old, with good oral health, mixed breathing and onychophagia, attended the teaching clinic of UNIFIP/ Brazil, for orthodontic treatment due to aesthetic dissatisfaction. After clinical evaluation and radiographic and cephalometric examinations, a Class II, division 1 malocclusion with retruded mandible was diagnosed. The Klammt II functional orthopedic appliance was prescribed, with full use, for a period of 12 months and bimonthly appointments. The evolution of the case was satisfactory, with mandibular advancement and satisfactory change in the patient's facial profile. Conclusion: it is concluded that the Klammt II open elastic activator minimized the damage caused by class II division 1 with mandibular retrognathism, redirecting the growth of the mandible in a functional way, thus generating psychological benefits and favorable aesthetics for the profile and facial proportionality.

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Section: Discussionsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Treatment of Class Ii Malocclusion with Klammt Appliance: Clinical Case Report

2023

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“…Head gear is the better choice for the patient with frank maxillary excess and if the combination of mandibular deficiency exist with the maxillary excess then activator headgear therapy is the treatment of choice. 5 Facial esthetics in such patients is compromised due to more convex profile, lip incompetency, more display of upper teeth, and posteriorly placed lower jaw. Reduction in facial convexity and straighter profiles resulting in improved esthetics is a treatment objective in these cases.…”

Section: Discussionmentioning

confidence: 99%

Combined orthopedic and orthodontic correction of class 11 division 1 malocclusion - A case report

Kukreja¹,

Sindhu²,

Asija³

2020

IJODR

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Class 11 malocclusion generally occurs as a result of either increased maxillary growth or decreased mandibular growth or a combination of the same. Face bow along with headgear redirects the maxillary growth, where as functional appliances bring about the forward positioning of the mandible. The present case report show case a young girl of 11 years of age who was treated with a combination of high pull face bow attached with the activator, followed by fixed mechanotherapy. The combined headgear activator therapy provides greater cumulative skeletal benefits than a single appliance alone. Meticulous diagnosis and sound knowledge of biomechanics persuades efficient treatment results.

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“…But, class II malocclusions associated with vertical growth patterns are complex cases in which both the jaws are involved and the treatment plan should be directed toward correction of both the maxillary and mandibular jaw bases. 3 It is the increased posterior maxillary dimensions with subsequent backward rotation of mandible which worsens the profile in class II high-angle cases. Therefore, control of posterior maxillary heights is of utmost importance in treating such cases as mandibular advancement alone will not be sufficient to produce desirable changes in profile.…”

Section: Introductionmentioning

confidence: 99%

CBCT Evaluation of Condylar Changes in Class II Hyperdivergent Adult Patients Following Posterior Maxillary Intrusion Using Miniscrews/Miniplates—A Prospective Study

Bajaj¹,

Rathee

Goyal

2020

J Indian Orthod Soc

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Aim & Objectives: To evaluate using CBCT, the condylar changes taking place in retrognathic, hyperdivergent Class II adult patients following maxillary intrusion using miniscrew assembly. Materials and methods: In this prospective study design, 20 class II div I high angle cases in the age group of 20-25 years with Class II molar and canine relationship; Overjet > 5mm; ANB angle > 4°; FMA angle >25°; SNGoGn > 35°; Jaraback ratio< 60° and Lower Gonial angle>75° were taken. Each patient had a miniscrew assembly in the maxilla through which intrusive force was applied to the maxilla. Two additional miniscrews were placed between the first mandibular molars and second premolars to prevent extrusion of lower molars. CBCT images were taken at the beginning of the treatment (T1) and at the end of 6-9 months of molar intrusion (T2). Statistical analysis was carried out using student T- test. Results: Prior to treatment, the patients showed significant mandibular retrusion associated with increased maxillary posterior heights. Following maxillary intrusion with miniscrew assembly, CBCT evaluation revealed that the distance from the centre of condyle to the posterior border of the external auditory meatus was 19.2±1.67 mm on right side and 18.1±1.54mm on left side in T1 which increased to 19.6±1.45mm on right side and 18.5±1.36mm on left side in T2. The average forward displacement of condyle was .5mm which was statistically significant. The distance from the centre of condyle to superior border of external acoustic meatus was 3.1±1.7 mm on right side and 3.5 ±1.8 mm on left side in T 1 which increased to 3.8±1.9 mm on right side and 4.1 ±1.3mm on left side in T 2. The average downward displacement was .7mm which was statistically significant. Conclusion: Significant Maxillary intrusion can be achieved using miniscrews/ miniplate in adult hyperdivergent skeletal class II patients.

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Therapeutic approach to Class II, Division 1 malocclusion with maxillary functional orthopedics

Cited by 10 publications

References 27 publications

Treatment of Class Ii Malocclusion with Klammt Appliance: Clinical Case Report

Treatment of Class Ii Malocclusion with Klammt Appliance: Clinical Case Report

Combined orthopedic and orthodontic correction of class 11 division 1 malocclusion - A case report

CBCT Evaluation of Condylar Changes in Class II Hyperdivergent Adult Patients Following Posterior Maxillary Intrusion Using Miniscrews/Miniplates—A Prospective Study

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