Publications by authors named "Ratna Parameswaran"

Unlabelled: A borderline case presents with mild skeletal disharmony or orthodontic problems due to arch length discrepancy and migration of teeth or a combination of these but is masked by a balanced soft tissue relationship. This case report describes one such borderline case of a 13-year-old girl who complained of irregularly placed upper and lower front teeth. Extraoral examination revealed balanced soft tissue with a mild convex profile, competent lips, and an average nasolabial angle.

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Introduction: An anterior open bite is a form of vertical discrepancy that presents as a lack of contact between maxillary and mandibular segments. The treatment modalities usually involve either intrusion of posterior teeth or extrusion of anterior or a combination of both. The anatomical relationship between the apex of the maxillary molar roots to the inferior wall of the maxillary sinus floor is crucial in planning posterior intrusion.

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Background Microleakage under orthodontic brackets has a role in early bracket debonding and white spot lesions due to the ingress of oral fluids in the bracket-adhesive-tooth interface. This in vitro study aimed to evaluate and compare the microleakage under orthodontic brackets bonded with the conventional adhesive system, nanocomposites, and nanoionomers. Materials and methods Forty-five human premolars were extracted for therapeutic reasons and collected for this study.

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Class II malocclusion is one of the most prevalent types of malocclusions following Class I. The most typical postural features observed in Class II patients are extended craniocervical posture, cervical lordosis, and increased forward loading away from the body's centre of mass for compensating the mandibular deficiency and reduced airway. Its treatment involves orthodontic, functional, and orthognathic surgery.

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To investigate the pharyngeal airway volume in different anteroposterior skeletal malocclusions. This study was prepared according to the Cochrane criteria for creating a systematic review and meta-analysis and confirms the preferred reporting items for systematic reviews and meta-analyses (PRISMA) statement. This search was conducted to answer the patient/population, intervention, comparison and outcomes (PICO) question: To evaluate (outcome) and compare (comparison) whether there is a difference in airway volume in patients (participants) with different skeletal malocclusions diagnosed using 3D data (intervention).

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Objectives: To evaluate Intraoral volume changes in relation to the hard tissue shape changes in asymmetric patients before and after orthognathic surgery and establish a correlation between them.

Materials And Methods: A retrospective study which evaluated 12 asymmetric patients' pre and post-surgical CT records satisfying the inclusion criteria. Borders were defined for the measurement of extraoral, intraoral and tongue volume.

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Aim And Objectives: The aims of this study were to compare the changes in occlusal parameters, TMJ status clinically in patients after the completion of orthognathic surgery, and patients undergoing only orthodontic treatment and with patients having normal occlusion, using T-Scan.

Methodology: This consisting of three groups with a sample size of twelve. Group 1 consisted of patients who underwent orthognathic surgery and orthodontic treatment.

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Rationale: Orthodontic camouflage serves its purpose in treating mild to moderate skeletal dysplasia and in conditions where the patient is reluctant to opt for orthognathic surgery or when it is contraindicated.

Patient Concerns: A 22-year-old male was concerned about his irregular teeth.

Diagnosis: Angle's dentoalveolar class III malocclusion on class III skeletal on an average mandibular plane angle with anterior crossbite, deep bite, crowding in maxillary and mandibular anteriors, proclined maxillary anteriors and retroclined mandibular anteriors with reverse overjet and congenitally missing 12, 22, palatally impacted 13 and retained deciduous 63 and palatally placed 23.

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Dental compensations are an integral part of skeletal malocclusions. Failure to achieve optimal decompensation may lead to compromised surgical movements, thereby resulting in sub-optimal occlusion and soft tissue profile. Hence the mandibular subapical osteotomy was chosen as a minimalistic surgical alternative to the traditional combination of Le Fort 1 and bilateral sagittal split osteotomy.

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The Rationale: The surgery-first approach (SFA) has revolutionized orthognathic surgery in recent years and in trend because it addresses the dentofacial abnormalities first, making the patient compliant and outcome more predictable.

Patient Concerns: A 22-year-old female was concerned about her forwardly placed teeth.

Diagnosis: She had a compromised periodontium with a skeletal Class II malocclusion and dental malocclusion.

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This case report outlines the importance of an interdisciplinary approach and a patient centric outcome for the treatment of facial asymmetry resulting from hemifacial microsomia. Different treatment modalities are available to treat asymmetries. However, the best treatment outcome can be achieved only when the treatment plan is individualized for every patient.

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Objectives: To evaluate the tongue and oral cavity proper volume in pre- and post-bilateral sagittal split osteotomy (BSSO) patients, and to establish whether there was a correlation between them.

Materials And Methods: A retrospective study that evaluated 12 patients' pre- and post-surgical computed tomography records satisfying the inclusion criteria. Borders were defined for measurement of tongue and oral cavity proper volume.

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The sequelae of chronic edentulous space is the supraeruption of the opposing teeth which hinders prosthodontic replacement. Molar intrusion of overerupted teeth can be done using miniscrew implants which serves as a promising technique, especially in adult patients. This case report highlights pre-prosthodontic therapy by pure molar intrusion using Temporary Anchorage Device (TAD) in an adult patient seeking prosthesis to enhance chewing efficiency.

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Aims And Objectives: The aim of this study was to compare cephalograms for the hard and soft tissue changes observed in skeletal Class III patients of Indian origin who had undergone either single-jaw mandibular setback (BSSO) or bimaxillary surgery (Le Fort I advancement + BSSO setback) and also to derive a correlation between the changes brought about in the soft tissues by the surgical alteration in hard tissue.

Materials And Methods: The study included records comprising 18 treated skeletal Class III patients, who were divided into two groups based on the surgical procedures advocated: Group I: single-jaw procedure comprised of only mandibular set back, Group II: bimaxillary surgery. Presurgical and post-treatment cephalograms were calibrated and traced using Ilexis FACAD AB-2014 Version 3.

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Skeletal Class II malocclusions with vertical maxillary excess (VME) present with an amalgamation of several problems pertaining to psychological, esthetics, and function. The optimal treatment plan in such cases includes a synchronized orthodontic-surgical approach through superior repositioning and setback of maxilla by means of Le Fort I osteotomy and augmentation genioplasty. This case report describes a multidisciplinary approach in the successful management of a patient with VME to achieve superior esthetics and function.

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The current era of orthodontics has evolved from regular dental corrections to achieve the most needed harmony between functional stability and esthetics enhancement of craniofacial structures. The "desire" for attaining this harmony led to the birth of orthognathic surgeries. The orthognathic approach has undergone a paradigm shift through the years, from correcting the skeletal component to addressing the soft tissues, thus optimizing esthetic outcome.

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Introduction: To analyse the importance of bodily characteristics of growing children and its correlation towards skeletal maturity. This further aids orthodontists in proper treatment planning.

Aim: The purpose of this study was to assess the correlation between cervical vertebrae maturation, statural height and body weight as measured in 12 -year-old children.

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Introduction: One of the major limiting factors in retraction of proclined teeth is the width of the alveolus both in maxilla and mandible.

Aim: The objective of this study was to assess the maxillary and mandibular anterior alveolar dimensions and to correlate with mandibular divergence in Class I bi-dento-alveolar protrusion patients.

Materials And Methods: Pretreatment lateral cephalograms (n=88) were analysed using a composite analysis with cephalometric software.

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