1.Comparison of the predicted and achieved labiolingual inclinations of the maxillary central incisors in adult Class II division 2 malocclusions treated with clear aligners
Mariam AL-SAMMAN ; Mais SADEK ; Ahmad M. HAMDAN
The Korean Journal of Orthodontics 2024;54(6):403-410
Objective:
This study aimed to compare the predicted and achieved labiolingual inclinations of the maxillary central incisors in adult Class II division 2 malocclusions treated with clear aligners using Power Ridges® and composite attachments.
Methods:
This retrospective study included 24 patients (mean age, 26.5 ± 3.3 years). The patients had Class II division 2 malocclusion and were treated with non-extraction with Invisalign® clear aligners with either Power Ridges® or composite attachments to enhance the predictability of required change in labiolingual inclination for the maxillary central incisors.Before treatment, treatment prediction and final digital models were exported as stereolithography files and superimposed using the eModel 9.0 “Compare” software. The predicted and achieved labiolingual incisor inclinations were compared.
Results:
The mean accuracies of the achieved inclination of the central incisors were 68.3% in the Power Ridges® group and 71.6% in the attachments group. No statistically significant differences in predictability were found between the groups (P > 0.05). A low positive correlation was observed between the predicted inclination change and the average absolute difference between the predicted and achieved inclinations (r = 0.19).
Conclusions
Predicted labiolingual inclination is not fully achieved with clear aligners in both the Power Ridges® and attachment groups. Clinicians must take measures to counteract this limitation, specifically in Class II division 2 cases.
2.Comparison of the predicted and achieved labiolingual inclinations of the maxillary central incisors in adult Class II division 2 malocclusions treated with clear aligners
Mariam AL-SAMMAN ; Mais SADEK ; Ahmad M. HAMDAN
The Korean Journal of Orthodontics 2024;54(6):403-410
Objective:
This study aimed to compare the predicted and achieved labiolingual inclinations of the maxillary central incisors in adult Class II division 2 malocclusions treated with clear aligners using Power Ridges® and composite attachments.
Methods:
This retrospective study included 24 patients (mean age, 26.5 ± 3.3 years). The patients had Class II division 2 malocclusion and were treated with non-extraction with Invisalign® clear aligners with either Power Ridges® or composite attachments to enhance the predictability of required change in labiolingual inclination for the maxillary central incisors.Before treatment, treatment prediction and final digital models were exported as stereolithography files and superimposed using the eModel 9.0 “Compare” software. The predicted and achieved labiolingual incisor inclinations were compared.
Results:
The mean accuracies of the achieved inclination of the central incisors were 68.3% in the Power Ridges® group and 71.6% in the attachments group. No statistically significant differences in predictability were found between the groups (P > 0.05). A low positive correlation was observed between the predicted inclination change and the average absolute difference between the predicted and achieved inclinations (r = 0.19).
Conclusions
Predicted labiolingual inclination is not fully achieved with clear aligners in both the Power Ridges® and attachment groups. Clinicians must take measures to counteract this limitation, specifically in Class II division 2 cases.
3.Comparison of the predicted and achieved labiolingual inclinations of the maxillary central incisors in adult Class II division 2 malocclusions treated with clear aligners
Mariam AL-SAMMAN ; Mais SADEK ; Ahmad M. HAMDAN
The Korean Journal of Orthodontics 2024;54(6):403-410
Objective:
This study aimed to compare the predicted and achieved labiolingual inclinations of the maxillary central incisors in adult Class II division 2 malocclusions treated with clear aligners using Power Ridges® and composite attachments.
Methods:
This retrospective study included 24 patients (mean age, 26.5 ± 3.3 years). The patients had Class II division 2 malocclusion and were treated with non-extraction with Invisalign® clear aligners with either Power Ridges® or composite attachments to enhance the predictability of required change in labiolingual inclination for the maxillary central incisors.Before treatment, treatment prediction and final digital models were exported as stereolithography files and superimposed using the eModel 9.0 “Compare” software. The predicted and achieved labiolingual incisor inclinations were compared.
Results:
The mean accuracies of the achieved inclination of the central incisors were 68.3% in the Power Ridges® group and 71.6% in the attachments group. No statistically significant differences in predictability were found between the groups (P > 0.05). A low positive correlation was observed between the predicted inclination change and the average absolute difference between the predicted and achieved inclinations (r = 0.19).
Conclusions
Predicted labiolingual inclination is not fully achieved with clear aligners in both the Power Ridges® and attachment groups. Clinicians must take measures to counteract this limitation, specifically in Class II division 2 cases.
4.Diaphragmatic Fibromatosis: A Diagnostic and Therapeutic Challenge: A Case Report and Review of the Literature
Omar HAMDY ; Reem AYMAN ; Randa ABDELAAL ; Ransy ELHADIDY ; Mariam TAREK ; Gehad Ahmad SALEH ; Sara RAFAT
Journal of Chest Surgery 2024;57(6):547-552
Diaphragmatic fibromatosis is an exceptionally rare condition, with only 2 previously reported cases in the literature. We present the case of a 23-year-old woman with a left hypochondrial swelling measuring 19×18×13 cm on computed tomography. An endoscopic ultrasound-guided biopsy indicated low-grade papillary proliferation. Surgical exploration revealed a large mass originating from the left hemidiaphragm. Complete excision of the mass and reconstruction of the diaphragm with double-layer mesh were performed.Microscopic examination of the mass revealed a bland-looking spindle cell proliferation.Immunohistochemical staining showed a positive nuclear reaction in tumor cells for β-catenin, a focal positive reaction for SMA, and negative reactions for S100, CD34, and desmin.Diaphragmatic fibromatosis is an extremely rare tumor for which complete excision and reconstruction of the diaphragm is the best suggested modality of treatment.
5.Diaphragmatic Fibromatosis: A Diagnostic and Therapeutic Challenge: A Case Report and Review of the Literature
Omar HAMDY ; Reem AYMAN ; Randa ABDELAAL ; Ransy ELHADIDY ; Mariam TAREK ; Gehad Ahmad SALEH ; Sara RAFAT
Journal of Chest Surgery 2024;57(6):547-552
Diaphragmatic fibromatosis is an exceptionally rare condition, with only 2 previously reported cases in the literature. We present the case of a 23-year-old woman with a left hypochondrial swelling measuring 19×18×13 cm on computed tomography. An endoscopic ultrasound-guided biopsy indicated low-grade papillary proliferation. Surgical exploration revealed a large mass originating from the left hemidiaphragm. Complete excision of the mass and reconstruction of the diaphragm with double-layer mesh were performed.Microscopic examination of the mass revealed a bland-looking spindle cell proliferation.Immunohistochemical staining showed a positive nuclear reaction in tumor cells for β-catenin, a focal positive reaction for SMA, and negative reactions for S100, CD34, and desmin.Diaphragmatic fibromatosis is an extremely rare tumor for which complete excision and reconstruction of the diaphragm is the best suggested modality of treatment.
6.Comparison of the predicted and achieved labiolingual inclinations of the maxillary central incisors in adult Class II division 2 malocclusions treated with clear aligners
Mariam AL-SAMMAN ; Mais SADEK ; Ahmad M. HAMDAN
The Korean Journal of Orthodontics 2024;54(6):403-410
Objective:
This study aimed to compare the predicted and achieved labiolingual inclinations of the maxillary central incisors in adult Class II division 2 malocclusions treated with clear aligners using Power Ridges® and composite attachments.
Methods:
This retrospective study included 24 patients (mean age, 26.5 ± 3.3 years). The patients had Class II division 2 malocclusion and were treated with non-extraction with Invisalign® clear aligners with either Power Ridges® or composite attachments to enhance the predictability of required change in labiolingual inclination for the maxillary central incisors.Before treatment, treatment prediction and final digital models were exported as stereolithography files and superimposed using the eModel 9.0 “Compare” software. The predicted and achieved labiolingual incisor inclinations were compared.
Results:
The mean accuracies of the achieved inclination of the central incisors were 68.3% in the Power Ridges® group and 71.6% in the attachments group. No statistically significant differences in predictability were found between the groups (P > 0.05). A low positive correlation was observed between the predicted inclination change and the average absolute difference between the predicted and achieved inclinations (r = 0.19).
Conclusions
Predicted labiolingual inclination is not fully achieved with clear aligners in both the Power Ridges® and attachment groups. Clinicians must take measures to counteract this limitation, specifically in Class II division 2 cases.
7.Diaphragmatic Fibromatosis: A Diagnostic and Therapeutic Challenge: A Case Report and Review of the Literature
Omar HAMDY ; Reem AYMAN ; Randa ABDELAAL ; Ransy ELHADIDY ; Mariam TAREK ; Gehad Ahmad SALEH ; Sara RAFAT
Journal of Chest Surgery 2024;57(6):547-552
Diaphragmatic fibromatosis is an exceptionally rare condition, with only 2 previously reported cases in the literature. We present the case of a 23-year-old woman with a left hypochondrial swelling measuring 19×18×13 cm on computed tomography. An endoscopic ultrasound-guided biopsy indicated low-grade papillary proliferation. Surgical exploration revealed a large mass originating from the left hemidiaphragm. Complete excision of the mass and reconstruction of the diaphragm with double-layer mesh were performed.Microscopic examination of the mass revealed a bland-looking spindle cell proliferation.Immunohistochemical staining showed a positive nuclear reaction in tumor cells for β-catenin, a focal positive reaction for SMA, and negative reactions for S100, CD34, and desmin.Diaphragmatic fibromatosis is an extremely rare tumor for which complete excision and reconstruction of the diaphragm is the best suggested modality of treatment.
8.Comparison of the predicted and achieved labiolingual inclinations of the maxillary central incisors in adult Class II division 2 malocclusions treated with clear aligners
Mariam AL-SAMMAN ; Mais SADEK ; Ahmad M. HAMDAN
The Korean Journal of Orthodontics 2024;54(6):403-410
Objective:
This study aimed to compare the predicted and achieved labiolingual inclinations of the maxillary central incisors in adult Class II division 2 malocclusions treated with clear aligners using Power Ridges® and composite attachments.
Methods:
This retrospective study included 24 patients (mean age, 26.5 ± 3.3 years). The patients had Class II division 2 malocclusion and were treated with non-extraction with Invisalign® clear aligners with either Power Ridges® or composite attachments to enhance the predictability of required change in labiolingual inclination for the maxillary central incisors.Before treatment, treatment prediction and final digital models were exported as stereolithography files and superimposed using the eModel 9.0 “Compare” software. The predicted and achieved labiolingual incisor inclinations were compared.
Results:
The mean accuracies of the achieved inclination of the central incisors were 68.3% in the Power Ridges® group and 71.6% in the attachments group. No statistically significant differences in predictability were found between the groups (P > 0.05). A low positive correlation was observed between the predicted inclination change and the average absolute difference between the predicted and achieved inclinations (r = 0.19).
Conclusions
Predicted labiolingual inclination is not fully achieved with clear aligners in both the Power Ridges® and attachment groups. Clinicians must take measures to counteract this limitation, specifically in Class II division 2 cases.
9.The Trends of Endodontic and Prosthodontic Treatment by Postgraduate Students in University of Malaya
Aimi Amalina Ahmad ; Poornima Sawri Rajan ; Prema Sukumaran ; Mariam Abdullah ; Nora Sakina Mohd Noor ; Asfand Ali Khan
Annals of Dentistry 2021;28(1):34-39
This study is aimed to provide an insight into the types of treatment carried out by postgraduate students in the past 10 years. A retrospective study was carried out between November 2019 and February 2020 by deriving data from postgraduate students’ clinical logbooks of three different cohorts of Master of Clinical Dentistry (Restorative Dentistry in Conservative Dentistry) in 2010, 2013 and 2016. This retrospective data was systematically extracted from the records and tabulated categorically using an Excel spreadsheet (Microsoft Office Excel 2019). A descriptive analysis was carried out to further evaluate the results. Overall, the types of treatment carried out in the field of endodontics and fixed prosthodontics has changed in the past 10 years. An increasing trend is seen in the placement of all ceramic crowns and primary root canal treatment procedures, while a decreasing pattern is evident for secondary root canal procedures and placement of dental bridges.
10.Screening of hospital admissions for COVID-19 in Brunei Darussalam
Sanny Zi Lung Choo ; Hazirah Shafri ; Fatimah Al-Zahara Johan ; Norwani Basir ; Pui Lin Chong ; Muhammad Syafiq Abdullah ; Rosmonaliza Asli ; Jackson Tan ; Dilip Joseph Thottacherry ; Muhammad Ady Adillah Ahmad ; Vui Heng Chong
Western Pacific Surveillance and Response 2021;12(2):89-91
From late December 2019, an outbreak of coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) occurred in Wuhan, China and has spread globally resulting in a pandemic. Brunei Darussalam reported its first case of COVID-19 on 9 March 2020. Several measures were implemented to prevent a national outbreak. We report our experience with surveillance of patients requiring admission in all government hospitals. We detected one positive case, and through contact tracing two further cases were detected. Therefore, without this screening programme, these cases would likely have been missed, leading to further nosocomial and community spread.


Result Analysis
Print
Save
E-mail