Sridevi Padmanabhan

Sri Ramachandra Institute of Higher Education and Research | Sri Ramachandra University · Department of Orthodontics

Objective This study aimed to evaluate the chemical composition of the proximal enamel surface and the surface characteristics subjected to different extents of interproximal reduction (IPR) in a clinical setting. Materials and methods Premolars of orthodontic patients which were designated for extraction were subjected to .2 mm, .3 mm, and .5 mm...

Objectives To evaluate maximal inspiratory (MIP) and expiratory (MEP) pressures, which are reflective of respiratory muscle strength, in skeletal Class II patients with different growth patterns (horizontal, average, and vertical) and to correlate those with airway dimension. Materials and Methods Patients with a Class II skeletal base seeking ort...

Background The occurrence of mandibular canine impaction and/ or transmigration is a rare clinical entity but diagnosis and treatment planning is of clinical significance. The associated etiological factors and the clinical guidelines for the management are still not clear. The aim of this systematic review was to summarize the available data to re...

Introduction: The clinical effectiveness of clear aligners depends on the material properties both physical and mechanical. The purpose of this systematic review is to evaluate the physical and mechanical properties of different clear aligner materials and changes in the same during and after intra-oral use. Methods: Search was done in five elec...

Introduction Fixed orthodontic appliances create areas of plaque stagnation leading to an increase in the volume, structure, and composition of plaque. This increases the chances of decalcification and white spot lesions. Oil pulling, an ancient practice involving swishing oil in the mouth, has demonstrated a significant reduction in plaque scores...

Background New technologies have paved the way for newer fabrication techniques, such as rapid prototyping, which has gained popularity in the fabrication of several orthodontic appliances including retainers. Aim To evaluate the stability, survival time and periodontal health associated with vacuum-formed retainers (VFRs), bonded retainers (BRs)...

Background Skeletal class III malocclusion is a challenging condition that orthodontists frequently come across. The facemask (FM) is a device commonly used to treat this malocclusion. However, the stability of this orthopedic correction remains unclear, and collective documentation of the short-, mid-, and long-term stability after FM therapy is n...

This systematic review was intended to evaluate the maxillary sinus dimensions in vertical and sagittal craniofacial patterns and to assess if there was a difference among the craniofacial patterns. A systematic search was performed in seven databases till February 2021. The risk of bias was performed with modified Newcastle Ottawa scale. Meta-anal...

Objectives This study aimed to analyze and compare the temporomandibular joint (TMJ) and skeletal changes three dimensionally in growing patients with Class II malocclusion treated with the Twin block (TB) and Advansync appliance. Material and Methods This prospective study included 20 patients with Class II Division 1 malocclusion of which ten pa...

Objective :This study aimed to evaluate the chemical composition of the proximal enamel surface and the surface characteristics subjected to different extents of Inter- proximal reduction(IPR) in a clinical setting Materials and methods:Premolars of orthodontic patients which were designated for extraction were subjected to .2mm,.3 mm and .5 mm of...

Temporomandibular joint (TMJ) problems can be challenging and cause a myriad of complaints.The orthodontist can play a crucial role in identification and resolution of the same. The management through orthodontic treatment aims not merely at ideal positioning of the teeth but also ensuring synchrony between the condylar position and occlusion, ofte...

Objective: To comparatively evaluate the perception of patients' soft tissue profiles treated with Herbst and Twin Block appliances and correlate the perception with cephalometric parameters. Methods: The record of 30 patients (15 Herbst and 15 Twin Block) treated for a period of 6 months (±1.1 months) was included in the study. A total of 60 re...

Introduction: The Aim of this study is to compare the concentration of salivary leptin levels between underweight and overweight individuals and its significance in orthodontic tooth movement. Methods: Fourty five underweight and overweight female subjects. Materials and Method: Fourty five underweight and overweight female subjects were taken in t...

Objectives To evaluate the effect of nitrogen (N)-doped titanium dioxide (TiO2) coated stainless steel brackets activated with natural visible light and dental operating lights on Streptococcus mutans concentration in the plaque of orthodontic patients at 30 and 60 days. Materials and Methods A total of 30 patients were recruited for this split-mo...

Background Clear aligner therapy (CAT) has evolved as an esthetic alternative to fixed appliance therapy. However, studies on the effects of attachments on CAT are scarce. This research was done to evaluate the effect of labial and/or palatal attachments on maxillary incisor displacement in CAT through finite element analysis (FEA).Materials and me...

Introduction: The complications of soft drink consumption during orthodontic treatment includes degradation of enamel, reduction in the shear bond strength of orthodontic brackets, and also corrosion of orthodontic wires. The main objective of this review is to discuss the adverse effects of carbonated soft drink (CSD) consumption on patients unde...

PurposeTreatment of patients with obstructive sleep apnea (OSA) using mandibular advancement appliances enhances the airway and may be an alternative to continuous positive airway pressure (CPAP) in individuals with reduced adherence to CPAP therapy. The effectiveness as well as improved patient compliance associated with these appliances may impro...

Objective To evaluate enamel colour change over a period of one year after the completion of fixed appliance treatment and to assess the influence of two different clean-up procedures and the resulting surface roughness. Materials and methods Seventeen orthodontic patients were debonded and the residual resin removed using tungsten carbide burs fo...

Supra-eruption of molars into an opposing edentulous arch hinders prosthetic replacement in the opposing arch. Intrusion of such supra-erupted molar creates greater strain on anchorage. This case report highlights the intrusion of a supra-erupted maxillary molar with buccal and palatal micro implants to allow prosthodontic replacement in the opposi...

Background: Body Dysmorphic Disorder (BDD) is a psychiatric disorder with delusions about defects in appearance for which patients seek various treatments. Patients with BDD often seek cosmetic procedures, and orthodontic treatment is one among them. This is the first Indian study to determine the prevalence of BDD in an orthodontic outpatient dep...

The proximity of the orofacial structures to the upper airway has led to enormous interest in their influence on the airway maintenance mechanism. The recognition of Sleep disorders and the evolution of dental sleep medicine has fueled further interest in the role of orthodontic treatment on the airway particularly in Class II malocclusions. With a...

Introduction The collum angle that defines the crown root angulation of the single rooted teeth plays an important in treatment planning. Objective To compare the collum angle (crown root angulation) of maxillary and mandibular anterior teeth in different skeletal malocclusions using Cone Beam Computed Tomography (CBCT). Materials and methods Six...

Introduction This research aimed to evaluate the effect of titanium dioxide (TiO2) coating on surface roughness (Ra) of nickel-titanium (NiTi) archwires and its influence on Streptococcus mutans (S mutans) adhesion and enamel mineralization at the end of 1 month in orthodontic patients and to evaluate the integrity of the TiO2 coating. Methods Twe...

In the publication of this article [1], there is an error in the Materials and methods section.

Objective: The aim of this systematic review was to assess whether interceptive treatment carried out in the mixed dentition period improves the position of Palatally Displaced Canines (PDC). Materials and methods: A systematic search was performed on various computerized databases. A hand search was also performed by reviewing the references wi...

Background: The aim of this trial was to comparatively evaluate Icon® resin infiltration and Clinpro™ XT varnish in restoring aesthetics of white spot lesions (WSLs) present post-orthodontic treatment. Materials and methods: Two hundred forty WSLs were detected in 193 teeth of 12 patients. The participants were analysed-before intervention (T0),...

Objective: Maxillary canines are the second-most commonly impacted teeth. About two-thirds of the impacted maxillary canines are palatally impacted. Studies in the past have shown that 40% of cases with palatal impaction of maxillary canines presented with agenesis of third molars. Sporadic agenesis of third molars have been associated with polymo...

Résumé Objectifs Le but de cette étude était d’évaluer et de comparer les stades de maturité des vertèbres cervicales chez des adultes présentant différents rapports sagittaux squelettiques maxillomandibulaires. Matériels et méthodes Au total, 133 téléradiographies de profil ont été sélectionnées et réparties en trois groupes : A (50), B (43) et...

Objectives: The aim of this study was to assess and compare the cervical vertebral maturation stages in adults with different skeletal bases. Materials and methods: A total of 133 lateral cephalograms were selected and allotted in to three groups A (50), B (43) and C (40) having Class I, Class II and Class III skeletal base respectively. Cervica...

Objectives: To assess and compare the concentration of leptin in saliva between normal weight and overweight individuals and to evaluate the rate of orthodontic tooth movement. Materials and methods: Thirty female subjects were divided into two groups: I (normal weight) and II (overweight group) based on their body mass index. All subjects under...

Objective: To evaluate and compare the effect of various orthodontic bonding systems and clean up procedures on quantitative enamel colour change. Materials and methods: A literature search was done to identify the studies that assessed the quantitative enamel colour change associated with the various bonding systems and cleanup procedures. Elec...

Introduction: Our objective was to assess the antibacterial and cytotoxic effects of orthodontic stainless steel brackets coated with different phases of photocatalytic titanium oxide. Methods: From a total sample of 115 brackets, 68 orthodontic stainless steel brackets were coated with titanium oxide using a radiofrequency magnetron sputtering...

OBJECTIVES The aim of the present systematic review was to assess the effect of functional appliances on the airway dimensions in patients with skeletal Class II malocclusion. MATERIALS AND METHODS Articles were identified through a literature survey carried out through the following databases: (1) PUBMED, (2) Google Scholar, (3) The Cochrane Libr...

Introduction: The aims of the study were to evaluate and compare the bisphenol A (BPA) levels in saliva in patients using vacuum-formed retainers or Hawley retainers. Methods: Forty-five patients who had completed their fixed orthodontic treatment and were entering the retention phase were randomly allocated into 1 of 3 groups: vacuum-formed ret...

Objectives: To compare the adhesion of Streptococcus mutans to nickel titanium (NiTi) and copper-NiTi (Cu-NiTi) archwires and to correlate the adhesion to surface characteristics (surface free energy and surface roughness) of these wires. Materials and methods: A total of 16 patients undergoing orthodontic treatment with preadjusted edgewise app...

Background: Titanium alloy mini-implants have become popular in recent times and have been extensively used and studied. Although corrosion resistance of orthodontic materials has always been of concern, this property has been the least explored. The present study aimed to assess the composition, surface characterisation and corrosion resistance of...

Objective To evaluate the relationship between postural body stability (static and dynamic) and malocclusions of varying severity and to find whether different skeletal patterns showed variation in postural body stability. Materials and Methods Seventy-five subjects were divided into three groups based on case complexity using ABO discrepancy inde...

To evaluate and compare the Ca/P ratio of enamel samples around the orthodontic brackets for time periods of 0, 2 and 10 days in two groups (control group and study group). Forty extracted teeth were randomly divided into control group and study group. All samples were demineralized and incubated in artificial saliva at 37°C for a period of 10 days...

Dentofacial deformities involve deviations from the normal facial proportions and dental relationships and can range from mild to being severe enough to be severely handicapping.The term handicapping malocclusions though not a term commonly used, involves a fortunately small section (2-4%) of patients who can suffer from esthetic,psychological and...

The objectives of the study were to evaluate and compare the effects of the systemic consumption of probiotic curd and the topical application of probiotic toothpaste on the Streptococcus mutans levels in the plaque of orthodontic patients. The study consisted of 60 orthodontic patients divided into 3 groups of 20 each. Group 1 was the control grou...

The aim of this paper is to review the current literature on allergy in orthodontics and to identify the predisposing factors and the implications of the allergic reaction in the management of patients during orthodontic treatment. A computerized literature search was conducted in PubMed for articles published on allergy in relation to orthodontics...

The etiopathogenesis of temporomandibular joint (TMJ) disorders has been attributed to multiple factors and, while the importance of centric relation (CR) has been acknowledged in dental literature, the role of condylar position and CR-CO (CO-centric occlusion) discrepancy in TMJ dysfunction (TMD) has been a source of controversy. To establish the...

Our objective was to evaluate and compare the salivary levels of nickel and chromium before and 1, 7, and 30 days after placement of conventional and self-ligating appliance systems. Twenty women were randomly divided into 2 groups. Patients in group 1 had conventional brackets bonded to their teeth; in group 2, self-ligating brackets were bonded....

The release of metal ions from fixed orthodontic appliances is a source of concern. The aim of this study was to evaluate genotoxic damage in the oral mucosal cells of patients wearing fixed appliance, and the nickel and chromium ion contents in these cells. Twenty patients undergoing orthodontic treatment formed the experimental group, and 20 untr...

The aims of this research were to use high-performance liquid chromatography to assess the bisphenol A (BPA) released from an orthodontic adhesive (Transbond XT; 3M Unitek, Monrovia, Calif) with various light-curing tip distances and to correlate the release to the degree of conversion. One hundred thirty-eight premolar brackets were divided into 3...

To determine the in vivo presence of Streptococcus mutans and Streptococcus sobrinus on different bracket materials and to correlate the prevalence with the Visible Plaque Index (VPI) and the Gingival Bleeding Index (GBI). Orthodontic brackets made of different materials (stainless steel, gold, ceramic, plastic) were bonded to the upper and lower s...

Understanding the biologic requirements of orthodontic patients requires proper characterization studies of new archwire alloys. The aims of this study were to evaluate properties of wires made of 2 new materials and to compare their properties with those of stainless steel. The sample consisted of 30 straight lengths of 3 types of wires: stainless...

The aim of the study was to evaluate the accuracy of linear measurements obtained from reconstructed spiral CT images of human dry skulls in three planes by comparing them with direct skull measurements, and then to compare these with measurements made on photostimulable phosphor cephalograms. Using a Siemens Somatom Sensation spiral CT scanner (Mu...

To test the hypothesis that there is no difference in the cytotoxicity related to the modes of polymerization of five commercially available orthodontic bonding resins, with and without an oxygen-inhibited layer (OIL), and to evaluate the degree of conversion (DC) of these resins and correlate this to cytotoxicity. Five commercially available ortho...