A tooth abscess differs from a gum abscess by the source of the original infection. The tooth abscess (or periapical abscess) originates from the pulp of the tooth and exits out the tooth's apex at the bottom of the root. A gum abscess (or periodontal abscess) starts in a gum pocket outside of the tooth next to the root.
Click here to see a 239-word sentence that is a perfectly fine sentence (structurally). When two independent clauses are connected by only a comma, they constitute a run-on sentence that is called a comma-splice. The example just above (about the sunscreen) is a comma-splice.
Rope splicing, joining two pieces of rope or cable by weaving the strands of each into the other Eye splice, a method of creating a permanent loop in the end of multi stranded rope by means of rope splicing Splice joint, a method of joining two members end to end in woodworking Tape splice, the joining of audio tape