Evaluation of the Prognosis of the Teeth in the Mandibular Fracture Line

2020 ◽  
pp. 194338752095267
Author(s):  
Hatice Hosgor ◽  
Fatih Mehmet Coskunses ◽  
Deniz Akin
Keyword(s):  
Survival Rate ◽  
Open Reduction ◽  
Mandibular Fracture ◽  
Fracture Line ◽  
Preventive Approach ◽  
Clinical Records ◽  
Relationship Of ◽  
The Relationship

Objective: The aim of this study was to evaluate the prognosis of the teeth in the mandibular fracture line and to analyze the relationship between the degree of displacement of fracture fragments, the relationship of the fracture line to the periodontium, and the relationship between the condition of the teeth at the first postoperative (post-op) year. Methods: A total of 60 teeth from 38 patients (11 female and 27 male) who had erupted teeth in the line of mandibular fracture and were treated with open reduction were examined. The data were collected from the patients’ clinical records and radiographs. Age at the time of injury, gender, cause of trauma, site of fracture, the relationship of the fracture line to the periodontium, the degree of displacement of fracture fragments, and the condition of the teeth in the line of the fracture at the first post-op year were evaluated. Results: The degree of displacement of fracture fragments had an effect on the condition of the teeth at the first post-op year ( P = .036) and the regions of the mandible had an effect on the degree of displacement of the fracture fragments ( P = .000). The survival rate of the pulp of the teeth was 69.8%. Conclusions: A preventive approach should be preferred for teeth in the mandibular fracture line. Retained teeth in the fracture line should be monitored clinically and radiologically for at least 1 year, and unnecessary endodontic treatments should be avoided.

scholarly journals Teeth in the Line of Fracture: To Retain or Remove?

2010 ◽  
Vol 3 (4) ◽  
pp. 177-184 ◽  
Author(s):  
Jimson Samson ◽  
Reena John ◽  
Shalini Jayakumar
Keyword(s):  
Fracture Site ◽  
Mandibular Fracture ◽  
Fracture Line ◽  
Panoramic Radiographs ◽  
Fracture Displacement ◽  
Pulp Vitality ◽  
Relationship Of ◽  
The Relationship

The purpose of this study was to analyze mandibular fracture site, relationship of the fracture line to the periodontium, vitality of teeth, displacement of the fracture segments and their implications, and determine whether to retain or remove the teeth in the fracture line. Fifty patients with 62 fractures were involved in this study. An electric pulp tester was used to measure the pulpal response. The degree of fracture displacement and the relationship of the fracture line to the periodontium were evaluated using panoramic radiographs. Fractures of the parasymphysis region constituted a majority of 60.87% in the gross displacement category. Four of 50 patients showed no response presurgically and minimal response postoperatively on pulp vitality testing. Patients with teeth in the fracture line showing no response on pulp vitality testing should be advised extraction to avoid further complications.

Pre-embarkment Prognostication for Acute Paraquat Poisoning

1990 ◽  
Vol 9 (6) ◽  
pp. 381-384 ◽  
Author(s):  
Hiroshi Yamaguchi ◽  
Shigehito Sato ◽  
Seiji Watanabe ◽  
Hiroshi Naito
Keyword(s):  
Survival Rate ◽  
Medical Records ◽  
Base Excess ◽  
Colour Reaction ◽  
Arterial Blood ◽  
Blood Ph ◽  
Paraquat Poisoning ◽  
Qualitative Test ◽  
Relationship Of ◽  
The Relationship

1 In order to assess which laboratory parameters could be related to the prognosis of patients with acute paraquat poisoning, we reviewed the medical records of 160 patients who had ingested paraquat in an attempt at suicide. 2 Serum creatinine and potassium concentrations, arterial blood bicarbonate and base excess levels, arterial blood pH, volume of paraquat ingested and the strength of the urinary paraquat qualitative test (sodium dithionate colour reaction) on admission in the surviving patients were significantly different from those of the patients who died within 48 h of ingestion. 3 The relationship of the quantity Eq1 defined as: Eq1 = ([K +] × [HCO-3]) / ([Cre] × 0.088) (mEq l-1 ) against the interval of time after ingestion to admission (T) had a significant correlation with prognosis ( P < 0.01). Patients with Eq1 > (1500 - 399 × LogT) had a 90% survival rate, Eq1: (930 - 399 × LogT) < Eq1 ≤ (1500 - 399 × LogT) 38% and Eq1 ≤ (930 - 399 × LogT) 3%, P < 0.01.

scholarly journals Study of Maternal and Fetal Outcomes in High Risk Pregnancies

2020 ◽  
pp. 1-7
Author(s):  
Dr. Ankita Metkari
Keyword(s):  
Risk Factors ◽  
Retrospective Study ◽  
High Risk ◽  
Fetal Outcome ◽  
Risk Pregnancy ◽  
Maternal And Neonatal Outcomes ◽  
Clinical Records ◽  
Relationship Of ◽  
The Relationship ◽  
In Pregnancy

Background: Objectives of the current study were to detect high-risk-risk-risk factors in pregnancy their presentations and to develop a simple scoring system to identify and categorize high-risk pregnancies and to predict the maternal and neonatal outcomes by comparing our results to previous studies. Methods: In this retrospective study, antepartum, intrapartum and neonatal parameters were integrated into the clinical records and the relationship of a risk score to the outcome was evaluated for 346 randomly selected pregnant patients over 7 months. Conclusions: The present study shows that we achieve comparative and better results in high-risk pregnancy, improving both maternal and fetal outcome at our institute.

scholarly journals Analysis of Outcomes of Tamai Zone I Digital Replantation in Cases of Severe Crushing Injury

2020 ◽  
Vol 25 (4) ◽  
pp. 297-303
Author(s):  
Min Ki Hong ◽  
Jinha Park ◽  
Sung Hoon Koh ◽  
Dong Chul Lee ◽  
Si Young Roh ◽  
...  
Keyword(s):  
Survival Rate ◽  
Chi Square ◽  
Additional Surgery ◽  
Significant Difference ◽  
Relationship Of ◽  
The Relationship ◽  
Arteries And Veins ◽  
Digital Amputation ◽  
Digital Replantation ◽  
Red Line

Purpose: Digital replantation has dramatically changed the fate of mutilated injuries of hand. But in case of severe crushing injury in Tamai zone I, it is a contraindication of replantation. This study aims to determine the replantation survival rate in cases with crushing injury.Methods: We retrospectively evaluated patients’ charts and photos from January 2015 to December 2019. There were 294 patients (331 fingers) with digital amputation who underwent surgery. Cases with crushing were divided into petechiae-in-skin group and red-line-sign group and compared with the group without crushing. The relationship of survival rate with factors was evaluated using chi-square analysis.Results: Of these, 199 fingers were defined as severe crushed, and 140 cases with petechiae in skin and 59 cases with red line sign. There was no statistically significant difference in survival rate compared with the group without crushing (p=0.227). Additional surgery was performed more in crushed injury. However, necrotized soft tissue was mainly on margin of amputation, not on crushed area.Conclusion: The presence of crushing did not affect survival rate in Tamai zone I replantation. However, as the degree of crushing was severe, the need for additional surgery increased. We found that the number of anastomosed arteries and veins influences the survival rate. According to our analysis, even if it’s difficult, finding and doing anastomosis as many vessels as possible can make good results.

scholarly journals The Relationship of a Combination of Human Adipose Tissue-Derived Stem Cells and Frozen Fat with the Survival Rate of Transplanted Fat

2015 ◽  
Vol 42 (6) ◽  
pp. 677 ◽  
Author(s):  
Ki-Young Ha ◽  
Hojin Park ◽  
Seung-Ha Park ◽  
Byung-Il Lee ◽  
Yi-Hwa Ji ◽  
...  
Keyword(s):  
Stem Cells ◽  
Adipose Tissue ◽  
Survival Rate ◽  
Human Adipose Tissue ◽  
Relationship Of ◽  
The Relationship

scholarly journals The Relationship of the Facial Nerve to the Condylar Process: A Cadaveric Study with Implications for Open Reduction Internal Fixation

2015 ◽  
Vol 2015 ◽  
pp. 1-3 ◽  
Author(s):  
H. P. Barham ◽  
P. Collister ◽  
V. D. Eusterman ◽  
A. M. Terella
Keyword(s):  
Facial Nerve ◽  
Internal Fixation ◽  
Open Reduction ◽  
Mandibular Condyle ◽  
Open Reduction Internal Fixation ◽  
Condylar Process ◽  
Preauricular Approach ◽  
Relationship Of ◽  
The Relationship ◽  
Condylar Neck

Introduction. The mandibular condyle is the most common site of mandibular fracture. Surgical treatment of condylar fractures by open reduction and internal fixation (ORIF) demands direct visualization of the fracture. This project aimed to investigate the anatomic relationship of the tragus to the facial nerve and condylar process.Materials and Methods. Twelve fresh hemicadavers heads were used. An extended retromandibular/preauricular approach was utilized, with the incision being based parallel to the posterior edge of the ramus. Measurements were obtained from the tragus to the facial nerve and condylar process.Results. The temporozygomatic division of the facial nerve was encountered during each approach, crossing the mandible at the condylar neck. The mean tissue depth separating the facial nerve from the condylar neck was 5.5 mm (range: 3.5 mm–7 mm, SD 1.2 mm). The upper division of the facial nerve crossed the posterior border of the condylar process on average 2.31 cm (SD 0.10 cm) anterior to the tragus.Conclusions. This study suggests that the temporozygomatic division of the facial nerve will be encountered in most approaches to the condylar process. As visualization of the relationship of the facial nerve to condyle is often limited, recognition that, on average, 5.5 mm of tissue separates condylar process from nerve should help reduce the incidence of facial nerve injury during this procedure.

The relationship of the scleractinian corals to the rugose corals

Paleobiology ◽  
1980 ◽  
Vol 6 (02) ◽  
pp. 146-160 ◽  
Author(s):  
William A. Oliver
Keyword(s):  
Critical Points ◽  
Scleractinian Corals ◽  
Convincing Evidence ◽  
Early Triassic ◽  
Rugose Corals ◽  
History Of ◽  
The Subject ◽  
Relationship Of ◽  
The Relationship ◽  
Biologic Factors

The Mesozoic-Cenozoic coral Order Scleractinia has been suggested to have originated or evolved (1) by direct descent from the Paleozoic Order Rugosa or (2) by the development of a skeleton in members of one of the anemone groups that probably have existed throughout Phanerozoic time. In spite of much work on the subject, advocates of the direct descent hypothesis have failed to find convincing evidence of this relationship. Critical points are:(1) Rugosan septal insertion is serial; Scleractinian insertion is cyclic; no intermediate stages have been demonstrated. Apparent intermediates are Scleractinia having bilateral cyclic insertion or teratological Rugosa.(2) There is convincing evidence that the skeletons of many Rugosa were calcitic and none are known to be or to have been aragonitic. In contrast, the skeletons of all living Scleractinia are aragonitic and there is evidence that fossil Scleractinia were aragonitic also. The mineralogic difference is almost certainly due to intrinsic biologic factors.(3) No early Triassic corals of either group are known. This fact is not compelling (by itself) but is important in connection with points 1 and 2, because, given direct descent, both changes took place during this only stage in the history of the two groups in which there are no known corals.

Skeletal elements of crinoid echinoderms: High-resolution structural and microanalytical results

1983 ◽  
Vol 41 ◽  
pp. 194-195
Author(s):  
D. F. Blake ◽  
L. F. Allard ◽  
D. R. Peacor
Keyword(s):  
High Resolution ◽  
Marine Invertebrates ◽  
Sea Urchins ◽  
Structural Features ◽  
Sea Stars ◽  
High Resolution Tem ◽  
Relationship Of ◽  
The Relationship ◽  
Insight Into

Echinodermata is a phylum of marine invertebrates which has been extant since Cambrian time (c.a. 500 m.y. before the present). Modern examples of echinoderms include sea urchins, sea stars, and sea lilies (crinoids). The endoskeletons of echinoderms are composed of plates or ossicles (Fig. 1) which are with few exceptions, porous, single crystals of high-magnesian calcite. Despite their single crystal nature, fracture surfaces do not exhibit the near-perfect {10.4} cleavage characteristic of inorganic calcite. This paradoxical mix of biogenic and inorganic features has prompted much recent work on echinoderm skeletal crystallography. Furthermore, fossil echinoderm hard parts comprise a volumetrically significant portion of some marine limestones sequences. The ultrastructural and microchemical characterization of modern skeletal material should lend insight into: 1). The nature of the biogenic processes involved, for example, the relationship of Mg heterogeneity to morphological and structural features in modern echinoderm material, and 2). The nature of the diagenetic changes undergone by their ancient, fossilized counterparts. In this study, high resolution TEM (HRTEM), high voltage TEM (HVTEM), and STEM microanalysis are used to characterize tha ultrastructural and microchemical composition of skeletal elements of the modern crinoid Neocrinus blakei.

Studies on Leukemogenic and Sarcomagenic Viruses

1970 ◽  
Vol 28 ◽  
pp. 156-157
Author(s):  
Leon Dmochowski
Keyword(s):  
Electron Microscopy ◽  
Electron Microscope ◽  
Morphological Properties ◽  
Mode Of Development ◽  
Relationship Of ◽  
The Relationship

Electron microscopy has proved to be an invaluable discipline in studies on the relationship of viruses to the origin of leukemia, sarcoma, and other types of tumors in animals and man. The successful cell-free transmission of leukemia and sarcoma in mice, rats, hamsters, and cats, interpreted as due to a virus or viruses, was proved to be due to a virus on the basis of electron microscope studies. These studies demonstrated that all the types of neoplasia in animals of the species examined are produced by a virus of certain characteristic morphological properties similar, if not identical, in the mode of development in all types of neoplasia in animals, as shown in Fig. 1.

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