overshot bite made in china

Undershot is a class III malocclusion that is also referred to as mandibular prognathism, maxillary brachygnathism, mandibular mesioclusion, or an underbite. This malocclusion is characterized by a shorter upper jaw and a longer lower jaw, resulting in lower teeth that are in front of the upper teeth. While this condition is normal for some breeds, such as Bulldogs, in many breeds it is unusual. An undershot jaw occurs when the lower jaw grows faster than normal and becomes longer than the upper jaw, and is usually evident around 8 weeks of age in puppies. This misalignment can cause soft tissue trauma, such as to the lips. When the incisors meet instead of fitting next to each other, it is called a level bite. When the malocclusion causes the lower incisors to be placed in front of the upper incisors, it is called a reverse scissors bite.

The cause of overshot and undershot jaws in dogs relate to the increased or decreased rate of growth of the upper and lower jaws in relation to one another. This can occur due to a: Genetic disorder Trauma; Systemic infection ;Nutritional disorder; Endocrine disorder; Abnormal setting of puppy teeth; Early or late loss of puppy teeth.

After a quick physical exam, your vet may have to sedate your dog in order to perform a thorough oral exam. This will assess your dog’s skull type and teeth location in relation to the teeth on the opposite jaw. Often, the placement of the upper and lower incisors in relation to one another can determine what type of malocclusion your dog has. Your vet will note any areas of trauma due to teeth striking those areas, and any cysts, tumors, abscesses, or remaining puppy teeth that may be present. A dental X-ray can also help to assess the health of the jaws and teeth. These diagnostic methods will lead to a diagnosis of an overshot or undershot jaw in your dog.

Treatment of a jaw misalignment will depend on the severity of the condition. If your dog has a misalignment, but can still bite and chew food without problems, no treatment may be needed. If the misalignment is caught early in a puppy’s life, it may only be temporary and may correct itself over time. However, there are times when intervention may be needed. If your puppy’s teeth are stopping the normal growth of his jaws, then surgery to remove those puppy teeth may be performed. This may allow the jaws to continue to grow, but will not make them grow. For older dogs who are experiencing pain and trauma due to misaligned jaws and teeth, oral surgery is generally performed to extract teeth that are causing trauma, to move teeth so that they fit, or to create space for a misaligned tooth to occupy. Other therapies include crown reductions or braces.

If your dog is genetically programmed to have an overshot or undershot jaw, intervention can help, but will not slow or stop the abnormal growth of either jaw. Prevent jaw misalignments in puppies by not breeding dogs who have overshot or undershot jaws.

Pathologic mandibular prognathism is a potentially disfiguring genetic disorder where the lower jaw outgrows the upper, resulting in an extended chin and a crossbite. In both humans and animals, it can be the result of inbreeding.shih tzus and boxers, it can lead to problems such as underbite.

“I am just as careful breeding them, health testing my adults to make sure the puppies are inherently healthy,” she says. “So far, all dogs are well. A couple of pups developed cherry eye and they have a slightly undershot bite, which I will be working on in the coming generations, as I bring in more dogs to enlarge the gene pool – even if I dread the whole process of importing!”

It appears that once evolution set jerboa bones on the path toward fusing together, they overshot the optimum amount of fusing—the structure that best dissipated stresses from jumping and landing—to become fully bonded.

I debated on where to go next, but at the end of the day the most widely used fishing tool has to be an overshot. Some will say why not a spear? Well if you must ask, always go with the strongest fishing tool you can run to catch the fish. And if you run a spear, never plug the I.D. of your fish by breaking it off. Done with that!

The info that follows has been taken from the manuals published on overshots. I realize that paper manuals are a thing of the past, yes, yes at one time fishing tool hands carried massive catalog brief cases full of reference material. Now you have the luxury of your laptop loaded with information. If you have never sat down and read an overshot manual, now might be a good time.

The overshot is highly versatile and efficient tool. There are several different types of overshots, however each overshot is designed to engage a specific size of tubing, pipe, coupling, tool joint, drill collar or smooth OD tool.

The original overshot was developed by Bowen Oil Tools, which is now part of NOV. One thing I will point out is that in the catalogs you will see more than one assembly number for a given OD of Overshot, this came about due to the two locations developing their own variations. I found this information on NOV’s website and thought it was interesting to share.

Bowen™ became a leader in innovation with the creation of the first overshot, the Series 150, in 1935. This tool set the standard for fishing equipment, and the quick acceptance of the tool assured the company partners that their business would be successful. The company continued to create new products, building a reputation for their well tool design and construction.

Currently there are several manufacturers of overshots, NOV (Bowen), Rubicon (Logan) and Applied Oil Tools (Gotco). These overshots are designated by a series number as follows:Series 10 - Sucker Rod Overshot

Overshots may be identified by one of the following, known as “type”:Full Strength (FS) - engineered to withstand all pulling, jarring and torsional strain

The basic overshot (from top down) consists of a top sub, a bowl, grapple, control, and a guide. In addition to the basic components, some overshots (Series 10 and 150) can be dressed with either a:Spiral grapple used if the fish diameter is near the maximum catch of the overshot, or a

The Series 150 Overshot features the ability to packoff on the fish. When the circulating packoff is not used, the fluid circulates down the drillpipe, aroundthe top outside of the fish, through the slip or grapple assembly, around the guide shoe and up the annulus.

When the circulating packoff is used, the annular space between the top outside of the fish and the inside of the lower part of the overshot is packed off, diverting the fluid flow down into the fish, making it easier to release and recover the fish. Packoffs usually are not high pressure devices but will often withstand sufficient pressure to establish circulation through the fish. Third party high pressure packoffs are available from various sources.

The extension can be installed between the top sub and the bowl of the Series 10, 70, and 150 overshots. It is used to extend the overshot bowl to:Allow the grapple to catch farther down on a fish that may be necked down at the top by having been pulled in two, or latched by an overshot and released several times, or to

A stop ring must be used where a fish OD reduces immediately below the catch area to allow the grapple to bite on full-size pipe.Example - catching a Hydril upset or EUE collar. If the upset of collar should pass completely through the grapple, the overshot may not be releasable.

The Series 10 Sucker Rod Overshot is designed to engage and recover sucker rods, couplings, and similar items from inside tubing strings.Basket grapples are recommended for fishing for hardened and ground boxes (Sucker Rod Box).

The Series 20 Sucker Rod Overshot is a short catch tool which provides a means for engaging the exposed portion of a fish too short to be engaged with a Series 10 overshot.Uses basket grapples only

The Series 70 Short Catch Overshot is designed to engage the exposed portion of a fish too short to engage with Series 150 overshots.Uses basket grapple only

The Series 150 Releasing and Circulating Overshot is used to engage, packoff, and retrieve twisted-off lost tubing, drillpipecoupling, tool joint, casing or other similar fish.

A right hand wicker grapple converts a normal right release overshot to left hand release. This grapple is used where you expect to apply excessive right hand torque to release a packer, safety joint, etc. Note: Overshot will have to be released by left hand rotation.

High Pressure Packoff Assemblies:The High Pressure Packoff Assembly is an accessory to the Series 150 Overshots. It is used when high pressure circulation to the fish is required. It consists of a packoff sub with packing and packing rings and is installed between the top sub and bowl of the overshot. By running the packoff sub above the bowl, this design prevents the application of high internal pressures to the overshot bowl. The design of the High Pressure Packoff Assembly allows pressures two to three times the standard overshot packoff to be applied to the fish.

This information comes directly from the NOV manual for the Wide Catch Overshot. This is probably the first and only change to this common tool I know of in my career.

The Wide Catch Overshot provides the strongest tool available to externally engage, pack-off, and pull a fish that has been significantly worn. This tool has similar rugged design features and construction as the industry standard, Bowen Series 150 overshot, with the ability to interchange the Bottom Guide with the full range of existing components used with the standard Bowen Series 150 overshot.

In service, the Wide Catch Overshot (WCOS) takes a positive grip over a large area of fish and is capable of withstanding heavy pulling, torsion, and jarring strains without damage to the tools or the fish.

The WCOS has been designed to significantly increase the catch range of the OD of the fish to be caught, compared to the standard overshot. This enables a greater opportunity for a successful fishing operation in a reduced number of trips, thus reducing overall intervention costs for the operator. In addition to the large catch range, the WCOS has the ability to seal across very large extrusion gaps at both standard and high pressure and provide full circulation through the fish, should it be required.

Connections between the Top Sub/Bowl and Extension Sub have been designed to create a seal. This will prevent the connection from washing out should the overshot be required to be flowed through for a long period of time. In order to lock the Top Sub/Extension Sub to the Bowl from backing off during operation, set screws have become standard and will gall the threads should the connection break free.

The operation of all overshots is identical. The exception being that the Series 150 carries a packoff which provides circulation through the fish. First, determine that the overshot is properly assembled and dressed with the proper size grapple. Make up the overshot on the fishing string (normally it is run connected to the bottom of the bumper sub) and run it into the well. As the top of the fish is reached make sure circulation has been established to clear overshot ID of any plugging. Lower the overshot onto the top of the fish with no rotation at first. A 5,000 pound set down weight will be sufficient to engage the grapple. While lowering the overshot over the top of the fish watch for pressure build up, shut off pumps if any pressure build up is noticed. Should any back pressure be noticed, release the back pressure to allow the grapple to engage the fish. By elevating the string it can be determined, if the grapple went over and engaged the fish. If unable to work overshot over top of fish without rotation, then slowly rotate the fishing string to the right and gradually lower the overshot over the fish. Combined rotation and lowering over top of the fish are important to keep the grapple in the release position. This provides the maximum clearance between the grapple and fish. While lowering the overshot over the top of the fish, watch for torque build up and an increase in pump pressure. A pump pressure build up indicates the overshot has gone over the top of the fish thereby reducing the flow area. Stop rotation (continued rotation could dull the wickers of the grapple) enabling the grapple to set. Allow the right hand torque to slack out of the string and then pull on the string by elevating the string to set the grapple.

To release from the fish, bump down, then simultaneously rotate to the right and slowly elevate the fishing string. It is best to have a clean fishing top before running the overshot.

Here is a visual look into what an “undershot” and “overshot” jaw looks like. In recent years, I’ve noticed more and more dogs with this issue. Can a dog live productive life with a malocclusion: (imperfect positioning of the teeth when a jaws closed) Yes but with some issues along the way.

Let’s begin with a puppy will have 28 “puppy teeth” by the time it reaches six months old (this number can vary from breed to breed) By adulthood, most breeds will have a total of 42 teeth. As defined above a malocclusion or simply a misalignment of a dog’s teeth occurs when their bite does not fit accordingly beginning as puppy’s teeth come in and worsening as their adult teeth follow.

the upper jaw is longer than the lower one, an overshot or overbite. When a dogs mouth is closed, a gap between the upper and lower incisors (teeth) will be present. In most cases, puppies are born with a slight over/under bite and with time the problem can correct itself if the gap is not too large. What should be noted is if a dog’s bite remains over/undershot by 8-10 months old, that’s how it will remain for the remainder of its life. In overbite’s the structure may worsen as the permanent teeth come in as they are larger and can damage the soft parts of the mouth. Teeth extractions are sometimes necessary.

Structural dentition of a puppies jaw should be checked very early on to help eliminate this issue. Unfortunately most dog owners won’t notice until is late in the game. More so is the issues of backyard and/or inexplicable breeders breeding dogs with undershot/overshot jaws and potentially passing along this trait to future generations.

With an overbite, the upper jaw is longer than the lower one. When the mouth is closed, a gap between the upper and lower incisors occurs. Puppies born with an overbite will sometimes have the problem correct itself if the gap is not too large. However, a dog"s bite will usually set at ten months old. At this time improvement will not happen on its own. Your pet"s overbite may worsen as the permanent teeth come in because they are larger and can damage the soft parts of the mouth. Teeth extractions are sometimes necessary.

Problems that can arise from malocclusion are; difficulty chewing, picking up food and other objects, dogs with overshot jaws tend to pick up larger chunks of food since they can"t chew nor pick up smaller morsels which can lead to choking and future intestinal issues. These dogs are also prone to tartar and plaque build up which if left untreated can lead to other significant health issues such as heart problems. Other issues are listed below:

At the city level, we will start to see signs of the “Detroitization” (post-auto) or “Glasgowization” (post-shipbuilding) of some Chinese cities. Many cities are heavily dependent on a single industry, not just mining or steel but often a specific single manufactured good—lamps, socks, or automotive wheels. While great in times of fast growth, the reverse is also true. It’s not just that real-estate construction is no longer a driver of growth in those cities. Construction, even when it overshot true demand, was always driven off the back of the success of an industry creating jobs and incomes that enabled citizens to buy housing. That success will no longer be there. And with loans to business often guaranteed by other companies in the same industry in the same city, a single default can quickly cascade into other otherwise viable companies. In 2015, we will see the first of many “city transformation” programs as cities go through a Chinese version of restructuring and workout. Hopefully, cities at risk will see what may be coming and will act early to create new economic engines.

We will see the government standardize more of its approaches to decision making on business and regulatory issues, using the precedent of cases heard. For example, reviews of acquisitions should be faster, with clearer conclusions. We will also see the government leveraging technology more to monitor, audit, and impose sanctions on bad behavior, from tax avoidance to overly aggressive entertainment of government officials. Where could anticorruption investigations bite in 2015?

(3) Based on the statistical evidence that pit bull dogs are the leading cause of dog-bite- related fatalities in the United States, and other evidence in the form of individual experiences, the pit bull is infinitely more dangerous once it does attack; and

(j) Any such existing licensed pit bull terrier who is determined by a district judge or magistrate to have exhibited behavior so as to fall within the definition of a vicious dog or dangerous dog under state law or other city ordinance shall lose its exemption, and shall forthwith be removed from the city or be destroyed, as provided in this division or by the terms of such law or ordinance.

(a) Upon a sworn complaint that an animal is a pit bull terrier prohibited by this division and is currently being illegally possessed or maintained, a district court or district court magistrate shall issue a summons to the owners ordering him to appear to show cause why the animal should not be destroyed or removed from the city.

(b) Upon the filing of a sworn complaint as provided herein, the court may order the owner to immediately turn the animal over to the animal control officer, an incorporated humane society, a licensed veterinarian, or a boarding kennel, at the owner"s option, to be retained by them until a hearing is held and a decision is made for the disposition of the animal. The expense of the boarding and retention of the prohibited animal is to be borne by the owner. After a hearing, the court shall order the destruction of the animal, at the expense of the owner; or, in the alternative, at the court"s discretion, order the animal removed from the city under terms and conditions which ensure such removal.

Mouth. A bite in which the outer side of the lower incisors touches the inner side of the upper incisors. The lips should be tight and clean. The badly undershot or overshot bite is a serious fault.