Conservative Option (conservative + option)

Distribution by Scientific Domains


Selected Abstracts


Managing Congenitally Missing Lateral Incisors.

JOURNAL OF ESTHETIC AND RESTORATIVE DENTISTRY, Issue 4 2005
Part III: Single-Tooth Implants
ABSTRACT Three treatment options exist for the replacement of congenitally missing lateral incisors. They include canine substitution, a tooth-supported restoration, and a single-tooth implant. Selecting the appropriate treatment option depends on the malocclusion, anterior relationship, specific space requirements, and condition of the adjacent teeth. The ideal treatment is the most conservative option that satisfies individual esthetic and functional requirements. Today, the single-tooth implant has become one of the most common treatment alternatives for the replacement of missing teeth. This article closely examines the many interdisciplinary issues that arise when treatment planning the placement of single-tooth implants in patients with congenitally missing lateral incisors. The specific criteria that must be evaluated illustrate the importance of an interdisciplinary treatment approach to achieve optimal esthetics and long-term predictability. This is the final article of a three-part series discussing the three treatment alternatives for replacing congenitally missing lateral incisors. [source]


Managing Congenitally Missing Lateral Incisors.

JOURNAL OF ESTHETIC AND RESTORATIVE DENTISTRY, Issue 1 2005
Part I: Canine Substitution
ABSTRACT Dentists often encounter patients with missing or malformed teeth. The maxillary lateral incisor is the second most common congenitally absent tooth. There are three treatment options that exist for replacing missing lateral incisors. They include canine substitution, a tooth-supported restoration, or a single-tooth implant. Selecting the appropriate option depends on the mal-occlusion, specific space requirements, tooth-size relationship, and size and shape of the canine. The ideal treatment is the most conservative option that satisfies individual esthetic and functional requirements. Often the ideal option is canine substitution. Although the orthodontist positions the canine in the most esthetic and functional location, the restorative dentist often needs to place a porcelain veneer or crown to re-create normal lateral incisor shape and color. This article closely examines patient selection and illustrates the importance of interdisciplinary treatment planning to achieve optimal esthetics. It is the first in a three-part series discussing the three treatment alternatives for replacing missing lateral incisors. [source]


The dynamics of collapse in world fisheries

FISH AND FISHERIES, Issue 2 2005
Christian Mullon
Abstract The fear of a rapid depletion of world fish stocks because of over-exploitation is increasing. Analysis of 1519 main series of the FAO world fisheries catch database over the last 50 years reveals that 366 fisheries' collapses occurred, that is nearly one fishery of four. The robustness of this result is tested by performing several complementary analyses using different conservative options. The number of collapses has been stable through time since 1950s indicating no improvement in the overall fisheries management. Three typical patterns emerge from the analysis of catch series during the period preceding the collapses: smooth collapse (33%), i.e. a long regular decline, erratic collapse (45%), i.e. a fall after several ups and downs, and a plateau-shaped collapse (21%), i.e. a sudden fall after a relatively long and stable persistence of high level of catches. Using a simple mathematical model, we relate the plateau-shaped collapses (which are, by nature, the most difficult to predict) to surreptitiously increasing exploitation and a depensatory mechanism at low population levels. Thus, a stable level of catch over several years is shown to conceal the risk of a sudden collapse. This jeopardizes the common assumption that considers the stability of catch as a goal for fisheries sustainability. [source]


Review article: pain and chronic pancreatitis

ALIMENTARY PHARMACOLOGY & THERAPEUTICS, Issue 7 2009
J. G. LIEB II
Summary Background, Pain in chronic pancreatitis chronic pancreatitis is a frustrating and challenging symptom for both the patient and clinician. It is the most frequent and most significant symptom. Many patients fail the currently available conservative options and require opiates or endoscopic/surgical therapy. Aim, To highlight the pathophysiology and management of chronic pancreatitis pain, with an emphasis on recent developments and future directions. Methods, Expert review, utilizing in addition a comprehensive search of PubMed utilizing the search terms chronic pancreatitis and pain, treatment or management and a manual search of recent conference abstracts for articles describing pain and chronic pancreatitis. Results, Pancreatic pain is heterogenous in its manifestations and pathophysiology. First-line medical options include abstinence from alcohol and tobacco, pancreatic enzymes, adjunctive agents, antioxidants, and non-opiate or low potency opiate analgesics. Failure of these options is not unusual. More potent opiates, neurolysis and endoscopic and surgical options can be considered in selected patients, but this requires appropriate expertise. New and better options are needed. Future options could include new types of pancreatic enzymes, novel antinociceptive agents nerve growth factors, mast cell-directed therapy, treatments to limit fibrinogenesis and therapies directed at the central component of pain. Conclusions, Chronic pancreatitis pain remains difficult to treat. An approach utilizing conservative medical therapies is appropriate, with more invasive therapies reserved for failure of this conservative approach. Treatment options will continue to improve with new and novel therapies on the horizon. [source]