Long-term follow-up of patients treated with the edgewise crowned Herbst appliance in the mixed dentition

Abstract Aim The aim of the present study was to investigate the prevalence and distribution according to various arch length conditions of lingually erupted mandibular permanent incisors and the effect of space condition on this phenomenon with long-term follow-up of these teeth. Methods and Materials A total of 105 children aged 5-7.5 years with one or more permanent mandibular incisors erupting lingual to the corresponding primary incisors were included in the study. A space analysis was performed. The subjects were divided into six groups according to various space conditions. The subjects were followed for 2 years. Results In this study the prevalence of lingual eruption was 18.4%. Eighty-three point seven percent of the subjects had either equivalent space, mild space excess, or a space deficiency (not more than 3 mm). No relationship was found between groups and clinical outcomes (P>.05). Follow up of the main three groups (according to the space analysis results) revealed in the adequate space group 75% of the children lost their primary incisors without any intervention. Similar outcomes occurred in 85.7% and 57.14% of cases in the mild space excess and space deficiency groups, respectively. Considering the three main groups combined, equivalent space, mild space excess, and mild space deficiency, 70.45% of children lost their primary incisors without any intervention and 14.8% needed primary incisor extraction (17.4%, 14.3%, and 10.7% in each group, respectively). Conclusion There was no predisposition toward a space deficiency or excess found in these subjects so the wait-and-see policy versus early extraction can be considered for lingually erupting permanent mandibular incisors. Clinical Significance Lingual eruption of mandibular incisors is a common clinical problem in the early mixed dentition period that is a source of discomfort for parents of patients with this condition. The present study provides a unique insight into the prevalence of the problem as well as the clinical decisions such as favoring retention of primary incisors as long as possible, the extraction of these primary teeth, placement of lower lingual holding arches, or referral for comprehensive orthodontic treatment. These types of data should not be regarded as standards but as illustrative of several key factors that are still not well-understood or which are still ignored. Citation Aminabadi NA, Farahani RMZ, Sohrabi A, Pouralibaba F. Lingual Eruption of Mandibular Permanent Incisors: A Space Correlated Phenomenon? J Contemp Dent Pract 2009 January; (10)1:025-032.

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Signs and symptoms of TMJ disorders in adults after adolescent Herbst therapy: A 6-year and 32-year radiographic and clinical follow-up study

The Angle Orthodontist ◽

10.2319/072914-530.1 ◽

2014 ◽

Vol 85 (5) ◽

pp. 735-742 ◽

Cited By ~ 8

Author(s):

Hans Pancherz ◽

Hanna Salé ◽

Krister Bjerklin

Keyword(s):

Computed Tomography ◽

Signs And Symptoms ◽

Cone Beam ◽

Herbst Appliance ◽

Follow Up Study ◽

Division 1 ◽

Long Term Follow Up ◽

Tmj Pain

ABSTRACT Objective: To analyze radiographic signs of temperomandibular joint (TMJ) osteoarthritis and clinical TMJ symptoms in patients 6 years and 32 years after treatment with a Herbst appliance. Materials and Methods: Fourteen patients were derived from a sample of 22 with Class II division 1 malocclusions consecutively treated with a banded Herbst appliance at the age of 12–14 years old (T1-T2). The subjects were reexamined after therapy at the ages of 20 years (T3) and 46 years (T4). The TMJs of the 14 patients were analyzed radiographically (conventional lateral tomography at T3 and cone-beam computed tomography at T4) and clinically/anamnestically at T3 and T4. Results: Six years after Herbst therapy, signs of osteoarthritis were seen in one patient. At the 32-year follow-up, two additional patients had developed signs of osteoarthritis. At the 6-year follow-up, TMJ clicking was present in two patients, though none of the patients reported TMJ pain. At the 32-year follow-up, six patients had TMJ clicking and one patient had TMJ pain. Conclusions: This longitudinal very-long-term follow-up study after Herbst therapy revealed only minor problems from the TMJ. The TMJ findings 6 years and 32 years after Herbst treatment corresponded to those in the general population. Thus, in the very long term, the Herbst appliance does not appear to be harmful to the TMJ.

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Generalized Short Root Anomaly with Various Dental Anomalies : A Case Report with a 5 - Year Follow - up

THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY ◽

10.5933/jkapd.2021.48.1.122 ◽

2021 ◽

Vol 48 (1) ◽

pp. 122-128

Author(s):

Dayeol Yu ◽

Donghyun Kim

Keyword(s):

Root Resorption ◽

Sella Turcica ◽

Mixed Dentition ◽

Permanent Teeth ◽

Dental Anomalies ◽

Short Root ◽

Cephalometric Radiograph ◽

Long Term Follow Up

Short root anomaly (SRA) is a rare dental condition with abnormally short and blunt root morphology. It mostly affects maxillary central incisors symmetrically and only has been observed in permanent teeth.A 9-year-old girl was referred from a local dental clinic for short root development in mixed dentition with no symptoms. Radiographic and intraoral examinations revealed SRA on upper and lower incisors and mandibular first molars along with other dental anomalies such as enamel hypoplasia and dens invaginatus. During long - term follow - up for 5 years, her mixed dentition has changed to permanent dentition and generalized SRA was observed in all permanent teeth. Cephalometric radiograph also revealed the calcification between the anterior and posterior clinoid processes described as a sella turcica bridge which was reported associating with dental anomalies. Early diagnosis of SRA is emphasized for successful management and prevention of root resorption and tooth loss.This report aimed to present a rare case of generalized SRA along with other dental anomalies and sella turcica bridging in a female patient through long - term follow - up.

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Therapy and prevention for mental health: What if mental diseases are mostly not brain disorders?

Behavioral and Brain Sciences ◽

10.1017/s0140525x1800105x ◽

2019 ◽

Vol 42 ◽

Cited By ~ 2

Author(s):

John P. A. Ioannidis

Keyword(s):

Mental Health ◽

Mental Disease ◽

Brain Disorders ◽

Social Stressors ◽

Labor Education ◽

Mental Diseases ◽

Long Term Follow Up ◽

Political Decisions

AbstractNeurobiology-based interventions for mental diseases and searches for useful biomarkers of treatment response have largely failed. Clinical trials should assess interventions related to environmental and social stressors, with long-term follow-up; social rather than biological endpoints; personalized outcomes; and suitable cluster, adaptive, and n-of-1 designs. Labor, education, financial, and other social/political decisions should be evaluated for their impacts on mental disease.

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