Abstract: To enable welding in a state in which aluminum plating in a desired welding region is removed at a desired high accuracy, a plating layer (103) in a welding region (151) and a plating layer (104) in a welding region (152) are removed using an alkaline solution to form a preprocessed aluminum plated steel sheet (101a), and a plating layer (123) in a welding region (153) and a plating layer (124) in a welding region (154) are removed using an alkaline solution to form a preprocessed aluminum plated steel sheet (121a).

Abstract: To enable welding in a state in which aluminum plating in a desired welding region is removed at a desired high accuracy, a plating layer (103) in a welding region (151) and a plating layer (104) in a welding region (152) are removed using an alkaline solution to form a preprocessed aluminum plated steel sheet (101a), and a plating layer (123) in a welding region (153) and a plating layer (124) in a welding region (154) are removed using an alkaline solution to form a preprocessed aluminum plated steel sheet (121a).

Abstract: A dental surgical drill guide assembly and method includes a surgical guide housing and a base frame that fits to both gum tissue and one or multiple small areas of jawbone. The apparatus may be configured to accurately place dental implants according to planned positions. Such apparatus may increase the stability of the surgical guide by clasping and/or contacting the jawbone, while improving the overall fit and minimizing the need of invasive surgery and flapping by also clasping and/or contacting selected areas of the gum tissue at the same time. Self-locking alignment members aid in easy removal, and re-installation, of the surgical guide housing to the base frame.

Abstract: A dental device and/or process include at least one scaled and shaped linking component to be supported by a dental model or an imaging template. The process includes scaling, aligning, and orienting data from different data acquisition sources with the scaled and shaped linking component, and combining the data from different data acquisition sources into a master data file. A method of making the diagnostic model can include virtually designing an imaging template including at least one linking component made at least partially of a radio opaque material, and three-dimensionally printing the virtually designed template. The diagnostic model can include at least one of an exposed bone structure portion, a removable gum tissue portion, a removable bone structure portion, a visualization portion illustrating a root, bone density, an internal bone structure, a nerve channel, a nerve ending, a sinus cavity, a blood vessel, an artery, and diagnostic teeth.

Abstract: An apparatus and method for performing a dental procedure relating to replacement of teeth includes a dental model made from an impression of teeth and gums of a particular mouth formation of a patient and an intended dental implant location with respect to the dental model. A reference member to be supported by the dental model is located in a desired angulation and dimensional position at the intended dental implant location. Each reference member includes a base portion having at least a partial spherical surface for engagement within an at least partial spherical aperture formed in the dental model with a round ball drill. The base portion supports an outwardly extending reference pin portion. A material to be applied around the one or more reference members provides support for each of the reference members when the material has hardened.