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Papers by Maged Alhammadi

Research paper thumbnail of Incidence, severity and orthodontic treatment difficulty index of impacted canines in Saudi population

Journal of Clinical and Experimental Dentistry, 2018

Background: The objective of this study was to assess the incidence, severity and orthodontic tre... more Background: The objective of this study was to assess the incidence, severity and orthodontic treatment difficulty of impacted maxillary canines in Saudi population. Material and Methods: This retrospective study included an investigation of panoramic radiographs for patients

Research paper thumbnail of Perception of Dental, Smile and Gingival Esthetic Components by Dental Specialists, General Dental Practitioners, Dental Assistants and Laypersons: A Cross-sectional Study

World Journal of Dentistry

People usually concern about the attractiveness and beauty of their face, smile, and teeth. This ... more People usually concern about the attractiveness and beauty of their face, smile, and teeth. This concern began since thousands of years ago. In some ancient Asians civilizations, some people in laid their teeth with precious materials to draw an attention and to show nobility or stained them black as signs of strength. Romans in first century covered their front teeth with urea to make them whiter in color as signs of beauty. 1 The concept of dental beauty differs from culture to another and crosswise different regions, countries, populations, and hence continents. The components of beautiful smile are also dynamic, modifying from time to time for varying causes. For example, in the 20th century maxillary midline diastema was a sign of beautiful smile, but these days most of these individuals seek orthodontic treatment for closure of maxillary midline diastema. 2 Generally, the term perception is a process involving personal analysis of a stimulus and identification of the object or individual producing a specific impression. Commonly, this impression toward others can cause an environmental condition which affected an individual's intellectual and social development. 3 Hence, the perception is not an absolute issue; rather it varies considerably owing to many determinants.

Research paper thumbnail of Three‐dimensional assessment of accelerating orthodontic tooth movement—micro‐osteoperforations vs piezocision: A randomized, parallel‐group and split‐mouth controlled clinical trial

Orthodontics & Craniofacial Research

OBJECTIVE To compare the effects of micro-osteoperforations (MOPs) versus piezocision (Piezo) in ... more OBJECTIVE To compare the effects of micro-osteoperforations (MOPs) versus piezocision (Piezo) in accelerating orthodontic tooth movement in adults. SETTING AND SAMPLE POPULATION In this randomized, single-blinded, parallel-group, split-mouth clinical trial, 24 patients aged 15-40 years were recruited. SUBJECTS AND METHODS Patients were randomly allocated into two groups: MOPs and Piezo groups. One side of the maxilla was allocated randomly for treatment with one of these techniques, and the other side was treated conventionally to act as a split-mouth control. The rate of canine retraction was evaluated up to 3 months by three-dimensional digital models using a conventional labial appliance. Root resorption and bone height were evaluated using cone beam computed tomography. RESULTS The MOPs and Piezo groups showed a significantly higher rate of tooth movement after 3 months on the experimental sides than the control sides. However, the net movements in the MOPs and Piezo groups did not reveal a higher rate of tooth movement. Similarly, the overall net movement was -0.32 ± 1.14 mm and 0.55 ± 0.89 mm for MOPs and Piezo, respectively (P = 0.606). Regarding root resorption, the overall changes in intra- or intergroup comparisons were insignificant. Decreased canine palatal bone height was reported on the experimental side of the Piezo group (P = 0.015) after 3 months, but the overall changes were insignificant. CONCLUSIONS The effect of MOPs and Piezo techniques in accelerating the orthodontic canine retraction was comparable to each other, and to the conventional methods. Neither technique caused root resorption or increased vertical bone loss.

Research paper thumbnail of Three-dimensional skeletal and pharyngeal airway changes following therapy with functional appliances in growing skeletal Class II malocclusion patients

Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie

To three-dimensionally analyze the skeletal and pharyngeal airway changes induced by Twin Block (... more To three-dimensionally analyze the skeletal and pharyngeal airway changes induced by Twin Block (TWB) and Forsus Fatigue Resistance Device (FFRD) in skeletal Class II female patients compared with untreated controls. The study comprised 62 growing female patients with skeletal Class II malocclusion due to mandibular retrusion treated with either TWB (n = 23) or FFRD (n = 21), or neither (n = 18; controls). Pre- and posttreatment/observational cone beam computed tomography images were used to evaluate the treatment changes. TWB induced more obvious mandibular skeletal changes and caused significant retrusive effects on the maxilla. Similarly, the sagittal and vertical jaw relationships were affected more obviously with TWB (P <0.001) compared to FFRD. Changes in oropharyngeal volume and minimal axial area were more obvious with TWB. The TWB functional appliance induced significant skeletal and pharyngeal airway changes. These changes were more obvious relative to the slight changes induced by FFRD or by natural growth.

Research paper thumbnail of Reliability of Beta-angle in different anteroposterior and vertical combinations of malocclusions

Research paper thumbnail of Incidence, severity and orthodontic treatment difficulty index of impacted canines in Saudi population

Journal of Clinical and Experimental Dentistry, 2018

Background: The objective of this study was to assess the incidence, severity and orthodontic tre... more Background: The objective of this study was to assess the incidence, severity and orthodontic treatment difficulty of impacted maxillary canines in Saudi population. Material and Methods: This retrospective study included an investigation of panoramic radiographs for patients

Research paper thumbnail of Perception of Dental, Smile and Gingival Esthetic Components by Dental Specialists, General Dental Practitioners, Dental Assistants and Laypersons: A Cross-sectional Study

World Journal of Dentistry

People usually concern about the attractiveness and beauty of their face, smile, and teeth. This ... more People usually concern about the attractiveness and beauty of their face, smile, and teeth. This concern began since thousands of years ago. In some ancient Asians civilizations, some people in laid their teeth with precious materials to draw an attention and to show nobility or stained them black as signs of strength. Romans in first century covered their front teeth with urea to make them whiter in color as signs of beauty. 1 The concept of dental beauty differs from culture to another and crosswise different regions, countries, populations, and hence continents. The components of beautiful smile are also dynamic, modifying from time to time for varying causes. For example, in the 20th century maxillary midline diastema was a sign of beautiful smile, but these days most of these individuals seek orthodontic treatment for closure of maxillary midline diastema. 2 Generally, the term perception is a process involving personal analysis of a stimulus and identification of the object or individual producing a specific impression. Commonly, this impression toward others can cause an environmental condition which affected an individual's intellectual and social development. 3 Hence, the perception is not an absolute issue; rather it varies considerably owing to many determinants.

Research paper thumbnail of Three‐dimensional assessment of accelerating orthodontic tooth movement—micro‐osteoperforations vs piezocision: A randomized, parallel‐group and split‐mouth controlled clinical trial

Orthodontics & Craniofacial Research

OBJECTIVE To compare the effects of micro-osteoperforations (MOPs) versus piezocision (Piezo) in ... more OBJECTIVE To compare the effects of micro-osteoperforations (MOPs) versus piezocision (Piezo) in accelerating orthodontic tooth movement in adults. SETTING AND SAMPLE POPULATION In this randomized, single-blinded, parallel-group, split-mouth clinical trial, 24 patients aged 15-40 years were recruited. SUBJECTS AND METHODS Patients were randomly allocated into two groups: MOPs and Piezo groups. One side of the maxilla was allocated randomly for treatment with one of these techniques, and the other side was treated conventionally to act as a split-mouth control. The rate of canine retraction was evaluated up to 3 months by three-dimensional digital models using a conventional labial appliance. Root resorption and bone height were evaluated using cone beam computed tomography. RESULTS The MOPs and Piezo groups showed a significantly higher rate of tooth movement after 3 months on the experimental sides than the control sides. However, the net movements in the MOPs and Piezo groups did not reveal a higher rate of tooth movement. Similarly, the overall net movement was -0.32 ± 1.14 mm and 0.55 ± 0.89 mm for MOPs and Piezo, respectively (P = 0.606). Regarding root resorption, the overall changes in intra- or intergroup comparisons were insignificant. Decreased canine palatal bone height was reported on the experimental side of the Piezo group (P = 0.015) after 3 months, but the overall changes were insignificant. CONCLUSIONS The effect of MOPs and Piezo techniques in accelerating the orthodontic canine retraction was comparable to each other, and to the conventional methods. Neither technique caused root resorption or increased vertical bone loss.

Research paper thumbnail of Three-dimensional skeletal and pharyngeal airway changes following therapy with functional appliances in growing skeletal Class II malocclusion patients

Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie

To three-dimensionally analyze the skeletal and pharyngeal airway changes induced by Twin Block (... more To three-dimensionally analyze the skeletal and pharyngeal airway changes induced by Twin Block (TWB) and Forsus Fatigue Resistance Device (FFRD) in skeletal Class II female patients compared with untreated controls. The study comprised 62 growing female patients with skeletal Class II malocclusion due to mandibular retrusion treated with either TWB (n = 23) or FFRD (n = 21), or neither (n = 18; controls). Pre- and posttreatment/observational cone beam computed tomography images were used to evaluate the treatment changes. TWB induced more obvious mandibular skeletal changes and caused significant retrusive effects on the maxilla. Similarly, the sagittal and vertical jaw relationships were affected more obviously with TWB (P <0.001) compared to FFRD. Changes in oropharyngeal volume and minimal axial area were more obvious with TWB. The TWB functional appliance induced significant skeletal and pharyngeal airway changes. These changes were more obvious relative to the slight changes induced by FFRD or by natural growth.

Research paper thumbnail of Reliability of Beta-angle in different anteroposterior and vertical combinations of malocclusions