Background: Orthopantomograph (OPG) is one of the most common radiograph use by dental surgeon for evaluate information about teeth, Maxilla, Mandible and other bony structure. It is also available, low price and low doses of radiation. Mandibular condyle is most important landmarks of mandible, which is changes due to ageing process, developmental abnormalities, distinct diseases, trauma, endocrine shock, radio therapy etc. Panoramic radiographs remain the best screening modality for temporomandibular joint abnormalities today. Objectives: The aims at objective of observing and documentation of shapes of condyle on an orthopantomogram, which were very important for treatment of patient in different branch of dentistry specially in oral and maxillofacial surgery. Materials and Methods: This study composed radiographic evaluation of 500 condylar heads after imaging 250 digitalized OPGs taken for analysis. Then evaluate the mandibular condylar shape in 2D dimensional view (OPG). Results: In our study, an attempt to common prevalent radiographic shapes of the condylar head on the OPG. 200 pairs of condylar heads were evaluated. Out of them 60% were oval in shape, followed by bird beak (29%), diamond (9%) and least being crooked finger (2%). Oval-oval was commonly occurring mix (67%), whereas crooked/ crooked finger was a rarity. Conclusion: Due to low radiation exposer and availability, OPG is common chose of dentist for primary evaluate the tooth, mandible and facial skeleton. Shapes of the mandibular condyle also evaluate by OPG which showing ovaloval being most accepted in both genders. Update Dent. Coll. j: 2019; 9 (1): 29-31

Background: Hydronephrosis in children is a common abnormality of the kidney. Surgical intervention in patient with hydronephrosis is to improve urinary drainage and to preserve renal function. Surgery (Anderson Hynes pyeloplasty: A-H pyeloplasty ) can be done with or without (Nephrostomy tube) D-J stent.Here we are describing our comparative experience between A-H pyeloplasty with D-J stent and A-H pyeloplasty with nephrostomy tube, at Bangabandhu Sheikh Mujib Medical University(BSMMU) to show the postoperative advantages of the former over the latter. Objectives: To assess functional outcome after A-H pyeloplasty with or without D-J stent in patients of unilateral hydronephrosis. Post operatively renal function was estimated after 3 months by DTPA renogram. Methods: It was a prospective study at Paediatric Surgery department of Bangabandhu Sheikh Mujib Medical University from April 2009 to October 2010. Twenty eight ( age, sex, side and type of operation matched) patients of unilateral hydronephrosis were included in the study and divided into two Groups: Group A (na =15) and Group B (nb=13) patients who underwent A-H pyeloplasty with D-J stent and A-H pyeloplasty with nephrostomy tube respectively. Child with bilateral hydronephrosis, hydronephrosis with associated anomalies like horseshoe kidney, ectopic kidney, solitary kidney, hydronephrosis with vesico ureteric reflux and redopyeloplasty were excluded in this study. Unpaired “t” test and Chi-square test were used for statistical analysis whereas postoperative hospital stay and renal functional improvement were used as parameters of the study. Results: For study Group A (A-H pyeloplasty with D-J stent) postoperative hospital stay were significantly lesser (P<0.00) than the GroupB ( A-H pyeloplasty with nephrostomy tube). Post operative split renal function and glomerular filtration rate (GFR) in Group A was improved (percentage) than Group B. Conclusion: This study reveals postoperative shorter hospital stay and improved postoperative split renal function in A-H pyeloplasty with D-J stent. DOI: http://dx.doi.org/10.3329/jpsb.v2i1.15159 Journal of Paediatric Surgeons of Bangladesh (2011) Vol. 2 (1): 22-25

Background: Hypospadias is a common congenital anomaly of male urethra. Surgical repair is the only treatment of this defect, but there is no single, universally acceptable technique for its repair . Snodgrass technique is now popular for its low complication rate, shorter operative time, vertically oriented slit like meatus and better cosmetic outcome. Objective: To evaluate the role of vascularized dorsal dartos pedicle flap over the neourethra in terms of postoperative urethrocutaneous fistula formation between two groups of patients of distal penile hypospadias. Methodology: Thirty two patients were included in this study. They were divided in group A and group B on the basis of serial number of patients. Snodgrass urethroplasty was done in group A considered as control and in group B, Snodgrass urethroplasty was done with additional dorsal dartos flap by buttonhole technique considered as interventional group. The outcome of both groups in terms of post operative urethrocutaneous fistula were evaluated. Results: In this study in group A, urethrocutaneous fistula developed in 6 patients out of 16 patients. Among the fistulas, 5 were situated at the coronal level and 1 at the hypospadiac meatus level. In group B, urethrocutaneous fistula developed in 1 patient out of 16 patients and the fistula occurred at the coronal level. In either group, all the fistulas are developed after removal of the catheter. In terms of post operative urethrocutaneous fistula formation in between the two groups, the results were statistically significant. Conclusion: Snodgrass urethroplasty with additional dorsal dartos flap by buttonhole technique have better outcome than without additional dorsal dartos flap in terms of postoperative fistula formation. DOI: http://dx.doi.org/10.3329/jpsb.v2i1.15161 Journal of Paediatric Surgeons of Bangladesh (2011) Vol. 2 (1): 31-35

Background:Skin act as a protective barrier to prevent the contamination from environment and dehy- dration of tissue. After any surgery to the oral cavity, wound closure or reconstruction is mandatory which is done by skin graft and skin substitute like amniotic membrane by the process of epithelializa- tion and tissue regeneration. Amniotic membrane is use as skin substitute in burn, eye and oral cavity as biologic wound dressing.Objective:To evaluate the epithelialization after use of amniotic membrane in mucosal defect of oral cavity as a biologic dressing.Methods:This was a prospective study which included 26 with premalignant lesion in buccal mucosa who under went excision of the lesion from intraoral buccal mucosa between January 14-june 15 and post operative follow up for 4-6 month after the surgical procedure. We used amniotic membrane(am) for dressing of the defects in buccal mucosa of oral cavity under local anesthesia. Efficacy of this procedure was assessed by granulation tissue formation with surface epithelialization on the graft site.Results:The epithelialization evaluated in postoperative period. According to sex 40 males 70% and 30 females age 22-72 years with means age 45.0±10.5 years. After excision of lesion from buccal mucosa amniotic membrane was grafted on the defect. Completeadherence of amniotic membrane in most of the cases.Wound covered by epithelialization was entire wound coverage in 85% and Nearly entire wound coverage in 15% when use amniotic membrane use as a biologic dressing in oral cavity. No allergic reaction occurs in any patients.Conclusion: Amniotic membrane can be useas a skin substitute in buccal mucosa of the oral cavity.Update Dent. Coll. j: 2018; 8 (1): 36-40

Objective: To evaluate the postoperative outcome in standard Comma Shaped incision and Ward's incision on postoperative complications in surgical removal of impacted mandibular third molar. Material and Methods: In this study, 100 patients with impacted mandibular third molar were selected for study. The patients were divided in to two groups. Each group contains 50 patients. A standard Ward's incision was made on one group and a Comma incision was made on another group to reflect the mucoperiosteal flap, after the common steps for removal of impacted third molars were followed. The postoperative parameters were recorded immediately on the postoperative days 1, 3 and 7. For bivariate analyses, Chi square and Student t test were used. The significance level was set at 5%. Results: The pain and swelling scores were found to be significantly lower in the surgical area with Comma incisions, which was recorded on days 1, 3 and 7 as compared to the area where standard Ward's incision were made. In mouth opening, there was a sufficiently great difference seen between the two incisions on first postoperative day, but on day 3 and 7 there was no statistical significance. Conclusion: The Comma Shaped incision design was preferable over the standard Ward's incision, considering the lesser degree of postoperative complications.

Aim: The focus of the education was to assess the success between localanesthetic infiltration injection and inferior alveolar nerve block anesthesia in extraction of Chronic periodontitis mandibular posterior teeth. Methods: 100 patients aged between 13 and 73 years who attended the Department of Dental surgery, BIRDEM General Hospital for extraction of advance periodontitis of mandibular molars were included in this study. For the infiltration anesthetic technique, patient’s approval was taken. The patients were equally divided into two groups. Group (1) received 0.6 ml out of 1.8 ml of 2% lidocaine with 1:80000 adrenaline injection bucally and the same amount infiltration lingually opposite the intended tooth. Group (2) received 1.5 ml out of 1.8 ml of 2% lidocaine with 1:80000 and the remaining 0.3 ml was injected for long buccal nerve anesthesia. Results: In this Study we found 88% patients were pain free and Group-2 94% patients were pain free During extraction of Advance periodontitis of mandibular molars. P-value was 0.138 and it was not < 0.05. So it was not significant. On the other side 103 patients out of 113 were pain free in male and 79 patients out of 87 were pain free in female and 6 patients out of 87 were feeling pain during tooth extraction of advance periodontitis of mandibular molars. P-value was 0.138 and it was not < 0.05. So it was not significant. Conclusion: Infiltration anesthesia for non-vital mandibular molars is effective as a substitute for inferior alveolar block technique. Update Dent. Coll. j: 2020; 10 (1): 13-15

Aim: The aim of this study is to determine the prevalence of linea alba buccalis in Bangladeshi population. Objective: To study the prevalence of frictional keratosis encompassed by the particular age groups with and without parafunctional habits. Background: Linea alba buccalis is a thickened whitish line on the buccal mucosa at the horizontal of the occlusal plane extending from the corners of the mouth to the posterior teeth. It is usually correlated with the frictional activity of the teeth and may be emphasized by cheek biting or parafunction. The appearance is caused by a keratosis of the epithelial tissue, which cannot be rubbed off. It is asymptomatic and is frequently present bilaterally. The condition does not require treatment. Logic: Linea alba buccalis being common finding, it may also found in individuals who chew tobacco, a thorough analysis of the prevalence along with the various contributing factors would assist in prompt treatment and prevent further complications. Update Dent. Coll. j: 2019; 9 (2): 17-19

Background: Hypospadias where surgery is the only option to correct this birth defect which is usually associated with post-operative urethrocutaneous fistula formation even in best hands. The site of fistula is mostly at coronal level (80%) and less common at meatal level. Many factors are supposed to be responsible for causation of this fistula, important one is the developmentally defective ventral penile skin at and / or distal to the urethral meatus where some local healing factors like vascular and collagen tissues are insufficient. Objective: To determine histologically whether the ventral skin of hypospadiac penis at the meatal and coronal levels differ from the corresponding dorsal skin levels in terms of vascular and collagen tissue. Representative skin tissues were collected from ventral skin and corresponding dorsal skin of the meatal and coronal levels of every patient. Haematoxylin-eosin stained slides were prepared from each tissue specimen and were examined under microscope to determine the differences in blood vessels and collagen tissues distribution. Paired 't' test was used to test the significance of differences. Results: Significantly lower proportion of HISTOLOGICAL ANALYSIS OF VASCULAR AND COLLAGEN TISSUES IN THE VENTRAL AND CORRESPONDING DORSAL SKIN OF MID-PENILE HYPOSPADIAC PENIS AT THE MEATAL AND CORONAL LEVELS: A COMPARATIVE STUDY